Homework Helper and College Companion Websites

[BJ]

In 1996 I started BJ Pinchbeck's Homework Helper at www.bjpinchbeck.com
which became quite popular among young students throughout the
country.

Now that I am 20 years old and attending Drexel University in
Philadelphia, Pennsylvania, I decided it was time to start a new site,
BJ Pinchbeck's College Companion at www.bjpinchbeck.net that could
help students prepare for and survive the college experience. College
has been a very positive experience for me, but it would have been
nice to have more materials readily available to me prior to attending
college.

Please feel free to link to either site.

Thank you
BJ Pinchbeck
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Re: my email

[BJ Swope]

I would also recommend changing your birthday as well ;)


--
"The end of democracy and the defeat of the American Revolution will occur
when government falls into the hands of lending institutions and moneyed
incorporations."
-- Thomas Jefferson

The whole world is a comedy to those that think, a tragedy to those that
feel.  ---Horace Walpole





On Sat, Jul 21, 2012 at 6:36 AM, Maria Hanna Carmela Dionisio <
mmdionisio1...@yahoo.com.ph> wrote:

> lolz sorry i already change it..just a newbhie, that's why :Dv
>   --
> *From:* MRAB 
> *To:* python-list@python.org
> *Sent:* Wednesday, July 18, 2012 10:08 AM
> *Subject:* Re: my email
>
> On 18/07/2012 02:44, Maria Hanna Carmela Dionisio wrote:
> > mmdionisio1...@yahoo.com.ph
> >
> > Just a newbhie here :>
> >
> ...who has just revealed her password!
>
> [remainder snipped]
> --
> http://mail.python.org/mailman/listinfo/python-list
>
>
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
>
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Re: Inconsistent SMTP/Gmail connection drop

[BJ Swope]

The best tool to debug this is tcpdump.

Running a packet capture whilst sending the mail will most likely shed the
most light on the subject.


--
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: Vim capable IDE?

[BJ Swope]

On 18 Oct 2005 07:16:11 -0700, Chris Lasher <[EMAIL PROTECTED]> wrote:
A marriage of the twowould seem like the best of both worlds.Chris
The pessimists would say "the worst of both worlds" ;)

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Re: Pywin32: How to import data into Excel?

[BJ Swope]

On 11/8/05, Dmytro Lesnyak <[EMAIL PROTECTED]> wrote:





Hello,
 

I need to import some big 
data into Excel from my Python 
script. I have TXT file (~7,5 Mb). I'm using Pywin32 library for that, but if I 
first try to read the TXT file and then save the values one by one 
like


I have to question the reasoning behind using Excel.  That much
data seems like it would be troublesome to manage in Excel.  How
good is Excel at working with that much data?
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Re: Python CGI

[BJ Swope]

Here's a snippet of code I use in a CGI I use...

I check to see if the params has any data, if it does then return that
data and some other data that comes from the params.  If params is
empty, then draw a different page that says give me some data.

    if len(params):
    return params,inc_fields
    else:
    generate_form()
    sys.exit(1)


def generate_form():
    html_stuff.print_headers('Error','FF')
    print "Need some information for which to search...\n\n\n"
    html_stuff.form_open('search.cgi')
    html_stuff.submit_button('Try Again')
    print ''
    html_stuff.form_close()
    html_stuff.print_footers()
On 30 Nov 2005 20:52:01 -0800, jbrewer <[EMAIL PROTECTED]> wrote:
I need to update a CGI script I have been working on to performvalidation of input files.  The basic idea is this:1.) HTML page is served2.) User posts file and some other info3.) Check file for necessary data
* If data is missing, then post a 2nd page requesting needed data* If data is present, continue to 44.) Process input file and display results (processing path depends onwhether data from 3 was present in file or had to be input by user)
I'm unsure of the best way to implement step 3.  Is it even possible toput all of this into one script?  Or should I have one script check thefile for the data, then pass the info on to a 2nd script?  The
cgi.FieldStorage() function should only be called once, so it seemslike it's not possible to read a form and then repost another one andread it.  If this is true and I need 2 scripts, how do I pass on theinformation in step 3 automatically if the file has the proper data and
no user input is needed?Sorry if this is a dumb question (or unclear), but this is my(ever-growing) first CGI script.  Thanks.Jeremy--
http://mail.python.org/mailman/listinfo/python-list-- "But
we also know the dangers of a religion that severs its links with
reason and becomes prey to fundamentalism" --  Cardinal Paul
Poupard"It morphs into the Republican party!"  -- BJ
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Re: Jargons of Info Tech industry

[BJ Swope]

So says Chris from his webmail account...

On 8/25/05, Chris Head <[EMAIL PROTECTED]> wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
> 
> [EMAIL PROTECTED] wrote:
> [snip]
> > ... and generally these "web based message boards" (i.e. forums I
> > assume you mean) have none of the useful tools that Usenet offers and
> > are much, much slower.
> [snip]
> 
> Arrgh, I *emphatically* *hate* Web-based-(almost anything). Why, oh WHY,
> would we subject ourselves to Web-based message boards and Webmail
> services? When using a proper e-mail client, your bandwidth usage
> consists of downloading your e-mail. When using a Webmail service, your
> bandwidth usage consists of downloading the message, PLUS the entire
> user interface. Additionally, a user interface operating inside an HTML
> renderer can NEVER be as fast as a native-code user interface with only
> the e-mail message itself passed through the renderer. I mean, the way
> Webmail works, you're at the message list and click on a message to
> view. This causes a whole new page, user-interface and all, to be
> loaded. In comparison, that's like shutting down and re-opening your
> e-mail program for every single message you want to view!
> 
> Why can't we use the Web for what it was meant for: viewing hypertext
> pages? Why must we turn it into a wrapper around every application
> imaginable?
> 
> ...
> 
> 
> 
> Chris
> -BEGIN PGP SIGNATURE-
> Version: GnuPG v1.2.1 (MingW32)
> 
> iD8DBQFDDoRR6ZGQ8LKA8nwRAvinAKCVi3Sfztpm3ILUk7TnunPJxBEVzwCguvAu
> ME8mWt2eVNpPUckJ3NT39KY=
> =TdTk
> -END PGP SIGNATURE-
> --
> http://mail.python.org/mailman/listinfo/python-list
>
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Re: Problem with FTPLib and incomplete files on some downloads

[BJ Swope]

Just guessing but are the files binary yet you are downloading them without declaring binary?On 1/16/06, Peter A.Schott <
[EMAIL PROTECTED]> wrote:I download a lot of 4-6 KB files and regularly run into issues with files that
don't get downloaded all the way or otherwise get corrupt.I do something like:RemoteList = nlstdir()for filename in RemoteList:  LocalFile = open(filename, "wb")  LocalFile.write( "get file code here" )
  LocalFile.close()  #ftplib call to delete the remote fileI've tried to insert a pause into the code between the close and the remotedelete, but that doesn't seem to help.  For some reason it doesn't seem like the
buffer is completely written or read before the remote delete is called.  Thatleads to a file that's not 100% complete and thus can't be decrypted.Any ideas on what to look for?  I don't have my exact code handy at the moment
or I'd post some actual snippets.  It's also not consistent or it would be awhole lot easier to troubleshoot.  :-)Running Python 2.4.2 on Win32.Thanks.-Pete Schott--
http://mail.python.org/mailman/listinfo/python-list-- "But
we also know the dangers of a religion that severs its links with
reason and becomes prey to fundamentalism" --  Cardinal Paul
Poupard"It morphs into the Republican party!"  -- BJ
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Re: Monitoring number of smtp bytes sent through python e-mail socket

[BJ Swope]

BTW, I noticed a bunch of new line characters in your test message.

If you ever send mail to a qmail server it will be rejected because rfc 821
says that new line characters cannot occur without a carriage return.  So
change all those \n's to \r\n's ;)
--
We are all slave to our own paradigm. -- Joshua Williams
-- 
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Database Abstraction Layer And/Or ORM

[BJ Dierkes]

Hello all,

I am looking for opinions on preferred methods of Database  
Abstraction Layer or Object Relation Mapper (I'm using Python 2.5).
I have found a number of options such as those listed here:

http://wiki.python.org/moin/HigherLevelDatabaseProgramming


I'm not looking for a holy war based on whether a DAL/ORM *should* be  
used, and/or if it is preferred over direct access to the database  
API layer.  I understand that can be a lengthy discussion.  I would  
just like to see if there is a common 'preferred choice' in the  
area.  I am coding an application around SQLite, but need to keep the  
flexibility to allow the use of MySQL (or other).

Thoughts? 
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Re: smtplib starttls gmail example - comments?

[BJ Swope]

On 1/24/07, Tim Williams <[EMAIL PROTECTED]> wrote:


On 24/01/07, py <[EMAIL PROTECTED]> wrote:
> I would love for anybody to comment on this code with regard to
redundancy/efficiency/wordiness or whatever else.
> for instance, do i understand correctly that i cant have a try: else:
without an intervening except:?
> -dave
>
> stdout.write("calling smtp server...")
> try:
> server = SMTP(msgsmtp)
> except:
> stdout.write("FAIL.")   #using .write to avoid the implied
\n with print
> else:
> server.set_debuglevel(msgdebug)
> stdout.write("starting tls...")
> server.ehlo(msgfrom)
> try:server.starttls()
> except: stdout.write("FAIL.")
> else:
> server.ehlo(msgfrom)   #neessary duplication (?)
> stdout.write("logging in...")
> try:server.login(msgfrom, msgpass)
> except: stdout.write("FAIL.")
> else:
> stdout.write("sending...")
> try:server.sendmail(msgfrom, msgto, msgtxt +
"\n.\n")
> except: stdout.write("FAIL.")
> else:
> try:
> server.quit()
> except sslerror:  # a known and largely
ignored issue with early EOF in ssl protocol
> stdout.write("success.")
> else:
> stdout.write("success.")
> --


*** Not tested  but should have the same functionality and error
handling as your script ***

this_host = 'myhostname.mydom1.com'
print "calling smtp server...", #  the trailing comma removes '\n'
try:
server = smtplib.SMTP(msgsmtp,local_hostname=this_host)
server.set_debuglevel(msgdebug)
print "starting tls...",
server.starttls()
server.ehlo(this_host)  # RFC requirement for 2nd EHLO after
requesting TLS
print "logging in...",
server.login(msgfrom, msgpass)
print "sending...",
failed = server.sendmail(msgfrom, msgto, msgtxt + "\n.\n")
try:
server.quit()
except: pass
print "success."
except:
print "FAIL.",

if failed:
print "failed:", failed  # some recipients, but not all of them,
failed
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Both examples have included the cardinal sin in smtp...

They both send the message text followed by new line dot new line.

The smtp protocol specifically mentions CRLF dot CRLF.   Please please
please use \r\n.\r\n in your code...

--
We are all slave to our own paradigm. -- Joshua Williams
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Re: smtplib starttls gmail example - comments?

[BJ Swope]

Sweet!
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Slicing Issues

[BJ Swope]

Given this set of data (88 characters wide) in a file...


067AARON
WAY  
3004300252599A 
098   067017  129 672
067ABBA
CT
30518000882000902A  025 
11   0670163227  365 670
067ABBEY HILL
RD  
3002400010299A  004 
12   067027  276 667
067ABBEY
LN 
SW3004700495099A 
052   067036  093 659
067ABBEY PARK
WAY 
30044000901000967A 
043   0670161916  177 622
067ABBEY POINTE
WAY   
30024000103000176A  100 
12   0670178087  235 667
067ABBIE KILGORE
WAY  
30052001314001487A 
041   0670155595  096 649
067ABBOTT
DR  
30519002103002236A 
129   0670176283  007 682
067ABBOTTS BRIDGE
RD  
30096003550003578E  096 
04   0670128036  293 697
067ABBOTTS BRIDGE
RD  
30096003551003935O  056 
04   0670128046  293 697

and this code...
dafile = 'gwinnett_streets_short.txt'
f = open(dafile, 'r')
for line in f:
    line=line.strip('\r\n')
    county_code=line[0:3]
    street_name=line[3:30]
    district_combo=line[85:3]
    print county_code, '|' , street_name , '|' , district_combo , '|' , len(line), '|'


I get this output...
067 | AARON
WAY  
|  | 88 |
067 | ABBA
CT
|  | 88 |
067 | ABBEY HILL RD   |  | 88 |
067 | ABBEY
LN   
|  | 88 |
067 | ABBEY PARK WAY  |  | 88 |
067 | ABBEY POINTE WAY    |  | 88 |
067 | ABBIE KILGORE WAY   |  | 88 |
067 | ABBOTT
DR  
|  | 88 |
067 | ABBOTTS BRIDGE RD   |  | 88 |
067 | ABBOTTS BRIDGE RD   |  | 88 |

If I change the slice for district_combo to 
    district_combo=line[85:]

The output is what I want...

067 | AARON
WAY  
| 672 | 88 |
067 | ABBA
CT
| 670 | 88 |
067 | ABBEY HILL RD   | 667 | 88 |
067 | ABBEY
LN   
| 659 | 88 |
067 | ABBEY PARK WAY  | 622 | 88 |
067 | ABBEY POINTE WAY    | 667 | 88 |
067 | ABBIE KILGORE WAY   | 649 | 88 |
067 | ABBOTT
DR  
| 682 | 88 |
067 | ABBOTTS BRIDGE RD   | 697 | 88 |
067 | ABBOTTS BRIDGE RD   | 697 | 88 |


Why does the final slice have to be an open slice?  Why can the
slice not be like the previous slices in which it is a specified range
of characters?

-- We are all slave to our own paradigm. -- Joshua Williams
-- 
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Re: Slicing Issues

[BJ Swope]

On 5/21/06, Heiko Wundram <[EMAIL PROTECTED]> wrote:
Am Sonntag 21 Mai 2006 22:52 schrieb BJ Swope:> district_combo=line[85:3]This returns the slice from character 85 to character 3 in the string, readforwards. Basically, as Python slices are forgiving (because the borders are
actually "illogical"), this amounts to nothing, but could also amountto: "your indexing boundaries are invalid."Basically, what you want is:district_combo = line[85:88]where 88 = 85 + 3 (3 being the length). Read up on Python slices...
--- Heiko.--http://mail.python.org/mailman/listinfo/python-listHeiko,


Thank you.  I was thinking like mysql for the indexs. 
Thinking start at 85 and go for 3 characters instead of like python
start at x and go up to and including y.

The pages I had googled showed examples that were less than clear ;)

BJ-- We are all slave to our own paradigm. -- Joshua Williams
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Open a List of Files

[BJ Swope]

given a list such as

['messages', 'recipients', 'viruses']

how would I iterate over the list and use the values as variables and open
the variable names a files?

I tried

for outfile in ['messages', 'recipients', 'viruses']:
filename = os.path.join(Host_Path, outfile)
outfile = open(filename, 'w')


But it's not working.



-- 
We are all slave to our own paradigm. -- Joshua Williams

If the letters PhD appear after a person's name, that person will remain
outdoors even after it's started raining. -- Jeff Kay
-- 
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Re: Open a List of Files

[BJ Swope]

On Jan 8, 2008 6:03 AM, Fredrik Lundh <[EMAIL PROTECTED]> wrote:

> BJ Swope wrote:
>
> > given a list such as
> >
> > ['messages', 'recipients', 'viruses']
> >
> > how would I iterate over the list and use the values as variables and
> > open the variable names a files?
> >
> > I tried
> >
> > for outfile in ['messages', 'recipients', 'viruses']:
> > filename = os.path.join(Host_Path, outfile)
> > outfile = open(filename, 'w')
> >
> > But it's not working.
>
> the code looks ok.  please define "not working".
>
> 
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>

Yep, defining "not working" is always helpful! :)

I want to have all 3 files open at the same time.  I will write to each of
the files later in my script but just the last file is open for writing.
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Re: Open a List of Files

[BJ Swope]

On Jan 8, 2008 7:22 AM, Hrvoje Niksic <[EMAIL PROTECTED]> wrote:

> Fredrik Lundh <[EMAIL PROTECTED]> writes:
>
> > BJ Swope wrote:
> >
> >> the code looks ok.  please define "not working".
> >>
> >> Yep, defining "not working" is always helpful! :)
> >>
> >> I want to have all 3 files open at the same time.  I will write to
> >> each of the files later in my script but just the last file is open
> >> for writing.
> >
> > to keep more than one file open, you need more than one variable, or a
> > variable that can hold more than one object.
> >
> > if the number of files may vary, put the file objects in a list.
>
> Or in a dict:
>
> open_files = {}
> for fn in ['messages', 'recipients', 'viruses']:
>open_files[fn] = open(getfilename(fn), 'w')
>
> # open_files['messages'] is the open file 'messages' etc.
> --
> http://mail.python.org/mailman/listinfo/python-list
>

I decided that I was just trying to be "too smooth by 1/2" so I fell back to
...


messages = open(os.path.join(host_path,'messages.txt'), 'wb')
deliveries = open(os.path.join(host_path,'deliveries.txt'), 'wb')
actions = open(os.path.join(host_path,'actions.txt'), 'wb')
parts = open(os.path.join(host_path,'parts.txt'), 'wb')
recipients = open(os.path.join(host_path,'recipients.txt'), 'wb')
viruses = open(os.path.join(host_path,'viruses.txt'), 'wb')
esp_scores = open(os.path.join(host_path,'esp_scores.txt'), 'wb')


Thank you to everybody who answered.
-- 
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Re: Open a List of Files

[BJ Swope]

On Jan 8, 2008 9:34 PM, Terry Jones <[EMAIL PROTECTED]> wrote:

>
> I think you should revisit this decision.  Something like Fredrik's code
> is
> the way to go.  It has multiple advantages:
>
>  - It's much shorter.
>  - It's arguably easier to add/remove to/from.
>  - It has less risk of error (much less repetition).
>  - It allows your code to later take a string file tag and
>   write to that file by looking up its file descriptor in the dict.
>  - You can close all open files with a trivial loop.
>
> Also, if you start writing code like Fredrik's instead of like what you
> fell back on you'll make yourself a better programmer (in general, not
> just
> in Python).
>
> Terry
>


Thanks for the advice Terry.  With your prompting I went back and looked at
the examples and sought to understand them.

The results are...

#File Creations/Openings
def getfilename(host_path, fn):
return os.path.join(host_path, '%s.txt' % fn)

outfiles_list = ['messages', 'deliveries', 'actions', 'parts', 'recipients',
'viruses', 'esp_scores']
open_files = {}
for fn in outfiles_list:
open_files[fn] = open(getfilename(host_path, fn), 'wb')


#Referring to files to write in various places...
open_files['deliveries'].write(flat_line)
open_files['deliveries'].write('\n')


#And finally to close the opened files
for fn in open_files.keys():
open_files[fn].close()


I sure am glad I posted this to the list.  It is exactly the kind of stuff I
was hoping to find.

Again, to all who answered, Thank You!


BJ
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Re: Obtaining SMTP address of a sender and receiver of an outlook mail

[BJ Swope]

If you have access to the AD server that hosts those DNs you can use
python's ldap module to retrieve the smtp attribute for the DN you've just
parsed from the message.

On Wed, Dec 3, 2008 at 2:06 AM, [EMAIL PROTECTED] <
[EMAIL PROTECTED]> wrote:

> Hi all,
>   I am trying to use python for extracting contents of an outlook
> email. For extracting the list of Recipients addresses I tried using
> the "MAPI.message.Recipients.Address" property, but the problem I am
> facing is that it is giving the complete DN name which is putting me
> in further complications. Is there any way to obtain the actual SMTP
> mail address ([EMAIL PROTECTED]) from the above object? I searched
> for it in the MSDN help but couldn't succeed.
>
> Thanks in advance,
> Venu
> --
> http://mail.python.org/mailman/listinfo/python-list
>



-- 
We are all slave to our own paradigm. -- Joshua Williams

If the letters PhD appear after a person's name, that person will remain
outdoors even after it's started raining. -- Jeff Kay

Fascism is a term used to describe authoritarian nationalist political
ideologies or mass movements that are concerned with notions of cultural
decline or decadence and seek to achieve a millenarian national rebirth by
exalting the nation or race, and promoting cults of unity, strength and
purity. - Wikipedia
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Re: smtplib problem with newly rebuilt Debian/lenny system

[BJ Swope]

try
 s=smtplib.SMTP('127.0.0.1')

instead.  I'm guessing that it's trying to bind to the IPv6 or some other
non IPv4 localhost instance.

On Wed, Mar 18, 2009 at 11:25 AM, cassiope  wrote:

> A hard drive failure forced me to rebuild my main system.  Just a few
> things haven't been restored; one of them is a python script which is
> used to email users of important events.
>
> In attempting to diagnose the cause, I tried directly executing the
> lines inside the python2.5 interpreter:
>
>import  smtplib
>s= smtplib.SMTP('localhost')
>
> but the second line causes  a traceback:
>
>File "", line 1, in 
>File "/usr/lib/python2.5/smtplib.py", line 244, in __init__
>(code, msg) = self.connect(host, port)
>File "/usr/lib/python2.5/smtplib.py", line 310, in connect
>raise socket.error, msg
>socket.error: (97, 'Address family not supported by protocol')
>
> This is with exim4 and python2.5 on a newly installed lenny system.
> No error messages appear in /var/log or /var/log/exim4 directories.
>
> Helpful clues or pointers to relevant documentation would be
> appreciated!
>
>-f
> --
> http://mail.python.org/mailman/listinfo/python-list
>



-- 
We are all slave to our own paradigm. -- Joshua Williams

If the letters PhD appear after a person's name, that person will remain
outdoors even after it's started raining. -- Jeff Kay

Fascism is a term used to describe authoritarian nationalist political
ideologies or mass movements that are concerned with notions of cultural
decline or decadence and seek to achieve a millenarian national rebirth by
exalting the nation or race, and promoting cults of unity, strength and
purity. - Wikipedia

The story of postwar American conservatism is best understood as a continual
replay of a single long-standing debate. On one side are those who have
upheld the Burkean ideal of replenishing civil society by adjusting to
changing conditions. On the other are those committed to a revanchist
counterrevolution, the restoration of America's pre-welfare state ancien
regime. And, time and again, the counterrevolutionaries have won. The result
is that modern American conservatism has dedicated itself not to fortifying
and replenishing civil society but rather to weakening it through a politics
of civil warfare. -- Sam Tanenhaus
--
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Re: How to get Exif data from a jpeg file

[BJ Swope]

On Sun, May 17, 2009 at 4:17 AM, Arnaud Delobelle
 wrote:
>
> Daniel Fetchinson  writes:
>
> >> I need to get the creation date from a jpeg file in Python.  Googling
> >> brought up a several references to apparently defunct modules.  The best
> >> way I have been able to find so far is something like this:
> >>
> >> from PIL import Image
> >> img = Image.open('img.jpg')
> >> exif_data = img._getexif()
> >> creation_date = exif_data[36867]
> >>
> >> Where 36867 is the exif tag for the creation date data (which I found by
> >> ooking at PIL.ExifTags.TAGS).  But this doesn't even seem to be
> >> documented in the PIL docs.  Is there a more natural way to do this?
> >
> >
> > Have you tried http://sourceforge.net/projects/exif-py/ ?
> >
> > HTH,
> > Daniel
>
> I will have a look - thank you.
>
> --
> Arnaud
> --
> http://mail.python.org/mailman/listinfo/python-list


I use the EXIF module to do bulk renames of all the pictures in a directory.

Here's my hackeration...



import sys
import os
import re
import time
import win32file
import datetime
import EXIF

DATE_FORMAT   = '%Y%m%d_%H%M%S'
allowed_files = ['.asf', '.jpg', '.mod', '.mov', '.mpeg', '.mpg',
'.jpeg', '.png', '.tiff', '.tif']
named_files = []

r = re.compile('.mod',)

def is_a_file(path, file, xtn):
    """
    We only want to rename the files right?
    Return True or False depending on whether object is a file or a directory
    """

    if os.path.isdir(os.path.join(path,file)):
    print "This is a directory not a file.  Will not rename!"
    return False
    if allowed_files.count(xtn):
    return True
    else:
    print file, "is not a in the list of allowed extensions. Will
not rename!"
    return False


def renameFile(path, file):
    """ Rename  with the using the date/time created or
modified for the new file name"""

    old_filename = os.path.join(path,file)

    (name,xtn) = os.path.splitext(file)
    xtn = xtn.lower()

    if re.search(r, xtn):
    xtn_old = xtn
    xtn = '.mpg'
    print xtn_old, 'changed to', xtn

    if is_a_file(path, file, xtn):
    created_time = os.path.getctime(old_filename)
    modify_time = os.path.getmtime(old_filename)

    f = open(old_filename, 'rb')
    try:
    tags=EXIF.process_file(f)
    except UnboundLocalError:
    print "No EXIF data available for ", file
    tags = {}
    exif_time = 0
    try:
    tags['EXIF DateTimeOriginal']
    exif_time = str(tags['EXIF DateTimeOriginal'])
    exif_time = int(time.mktime(time.strptime(exif_time,
"%Y:%m:%d %H:%M:%S")))
    except (KeyError,ValueError):
    print 'No EXIF DateTimeOriginal for ', file
    exif_time = 0
    f.close()

    if created_time < modify_time:
    local_time = time.localtime(created_time)
    else:
    local_time = time.localtime(modify_time)

    if exif_time:
    if exif_time < local_time:
    local_time = time.localtime(exif_time)

    date_time_name = time.strftime(DATE_FORMAT, local_time)

    copy_number = named_files.count(date_time_name)
    named_files.append(date_time_name)

    new_name = date_time_name + "_" + str(copy_number) + xtn

    new_filename = os.path.join(path, new_name)

    print 'Renaming:', old_filename, 'to', new_filename
    #print 'Created Time  = ', created_time
    #print 'Modified Time = ', modify_time
    #print 'EXIF Time = ', exif_time
    #print 'Time Used = ', local_time
    os.rename(old_filename, new_filename)


if __name__ == '__main__':
    if os.path.isdir(sys.argv[1]):
    """Recursively walk the directory listed as Arg 1 and work each file."""
    print
    for path,dirs,files in os.walk(sys.argv[1]):
    for file in files:
    renameFile(path, file)
    else:
    print "\nNo path to rename specified.\n"
    print "Usage:\n\tpython", sys.argv[0], ""
    sys.exit(1)




--
We are all slave to our own paradigm. -- Joshua Williams

If the letters PhD appear after a person's name, that person will
remain outdoors even after it's started raining. -- Jeff Kay

Fascism is a term used to describe authoritarian nationalist political
ideologies or mass movements that are concerned with notions of
cultural decline or decadence and seek to achieve a millenarian
national rebirth by exalting the nation or race, and promoting cults
of unity, strength and purity. - Wikipedia

The story of postwar American conservatism is best understood as a
continual replay of a single long-standing debate. On one side are
those who have upheld the Burkean ideal of replenishing civil society
by adjusting to changing conditions. On the other are those committed
to a revanchist counterrevolution, the restoration of America's
pre-welfare state ancien regime. And, time and again, the
counterrevolutionaries have won. The result is that modern American

Re: ftplib retrlines timeout

[BJ Swope]

I've had experiences with some python mail servers that time out connections
if data from the socket is not sent to the application within the timeout
parameter.

I have seen a python app on FreeBSD that would timeout a connection after
600 seconds if freebsd did not receive at least 32 kb of data within the 600
second timeout.  FreeBSD would only send from the buffer to the app if there
was 32kb of data, unless TCP segments were received with the PUSH flag set
which would force a flush of the network buffer.

It sounds like this is the behavior Brendan is seeing.



Auburn fans are like slinkys... not really good for anything but they still
bring a smile to your face when you push them down a flight of stairs.

To argue that honorable conduct is only required against an honorable enemy
degrades the Americans who must carry out the orders. -- Charles Krulak,
Former Commandant of the Marine Corps

We are all slave to our own paradigm. -- Joshua Williams

If the letters PhD appear after a person's name, that person will remain
outdoors even after it's started raining. -- Jeff Kay



On Wed, Dec 16, 2009 at 7:41 AM, Brendan  wrote:

> On Dec 15, 6:17 pm, Jennifer  wrote:
> > I am writing a program that has a requirement for  a timeout of
> > retrlines after the connection established. I just wonder if timeout
> > of ftplib.FTP('.xxx.com',username,password,timeout) will work for
> > retrlines method after the connection established. Or
> > socket.setdefaulttimeout will work in this case. Please let me know.
> >
> > What exception will be throwed if ftp.retrlines timed out.
> >
> > Many Thanks!
> >
> > - Jennifer
>
> I asked a similar question on here a few days ago and got no response,
> however I tried a large download which timed out with the following:
> Traceback (most recent call last):
>  File "./download_r1_neodf.py", line 167, in 
>result = ftp.quit()
>  File "/usr/local/lib/python2.6/ftplib.py", line 566, in quit
>resp = self.voidcmd('QUIT')
>  File "/usr/local/lib/python2.6/ftplib.py", line 248, in voidcmd
>return self.voidresp()
>  File "/usr/local/lib/python2.6/ftplib.py", line 223, in voidresp
>resp = self.getresp()
>  File "/usr/local/lib/python2.6/ftplib.py", line 209, in getresp
>resp = self.getmultiline()
>  File "/usr/local/lib/python2.6/ftplib.py", line 195, in getmultiline
>line = self.getline()
>  File "/usr/local/lib/python2.6/ftplib.py", line 182, in getline
>line = self.file.readline()
>  File "/usr/local/lib/python2.6/socket.py", line 406, in readline
>data = self._sock.recv(self._rbufsize)
> socket.error: [Errno 110] Connection timed out
>
>
> BTW, if you want to use the timeout paramter, you must also use the
> account parameter. Set it to ''.
> --
> http://mail.python.org/mailman/listinfo/python-list
>
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: ftplib retrlines timeout

[BJ Swope]

If it works like I've seen other python based network apps that have app
timeouts, and Brandon's post seemed to indicate that his timed out during
the readline portion of the FTP transfer.



Auburn fans are like slinkys... not really good for anything but they still
bring a smile to your face when you push them down a flight of stairs.

To argue that honorable conduct is only required against an honorable enemy
degrades the Americans who must carry out the orders. -- Charles Krulak,
Former Commandant of the Marine Corps

We are all slave to our own paradigm. -- Joshua Williams

If the letters PhD appear after a person's name, that person will remain
outdoors even after it's started raining. -- Jeff Kay



On Wed, Dec 16, 2009 at 5:01 PM, Jennifer wrote:

> So you mean ftplib.FTP('.xxx.com',username,password,timeout) will
> timeout the retrlines as well, correct? Thanks.
> --
> http://mail.python.org/mailman/listinfo/python-list
>
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: Split string but ignore quotes

[BJ Swope]

Would the csv module be appropriate?

On 9/29/09, Scooter  wrote:
> I'm attempting to reformat an apache log file that was written with a
> custom output format. I'm attempting to get it to w3c format using a
> python script. The problem I'm having is the field-to-field matching.
> In my python code I'm using split with spaces as my delimiter. But it
> fails when it reaches the user agent because that field itself
> contains spaces. But that user agent is enclosed with double quotes.
> So is there a way to split on a certain delimiter but not to split
> within quoted words.
>
> i.e. a line might look like
>
> 2009-09-29 12:00:00 - GET / "Mozilla/4.0 (compatible; MSIE 7.0;
> Windows NT 6.0; GTB5; SLCC1; .NET CLR 2.0.50727; Media Center PC
> 5.0; .NET CLR 3.0.04506; .NET CLR 3.5.21022)" http://somehost.com 200
> 1923 1360 31715 -
> --
> http://mail.python.org/mailman/listinfo/python-list
>


-- 
To argue that honorable conduct is only required against an honorable
enemy degrades the Americans who must carry out the orders. -- Charles
Krulak, Former Commandant of the Marine Corps

We are all slave to our own paradigm. -- Joshua Williams

If the letters PhD appear after a person's name, that person will
remain outdoors even after it's started raining. -- Jeff Kay
-- 
http://mail.python.org/mailman/listinfo/python-list

TypeError Exception in email lib

[BJ Swope]

  File "/usr/lib/python2.5/email/_parseaddr.py", line 142, in mktime_tz
if data[9] is None:
TypeError: 'NoneType' object is unsubscriptable

I'm parsing a bunch of spam and using the date field from the spams
for a date-time stamp.

I've fixed the lib on my box to place the call inside a try/except
clause to catch the exception now, but it seems the module has a bug
in it.

How would I go about recommending a change the module?

Original code:
def mktime_tz(data):
"""Turn a 10-tuple as returned by parsedate_tz() into a UTC timestamp."""
if data[9] is None:
# No zone info, so localtime is better assumption than GMT
return time.mktime(data[:8] + (-1,))
else:
t = time.mktime(data[:8] + (0,))
return t - data[9] - time.timezone

Patched code:
def mktime_tz(data):
"""Turn a 10-tuple as returned by parsedate_tz() into a UTC timestamp."""
try:
if data[9] is None:
# No zone info, so localtime is better assumption than GMT
return time.mktime(data[:8] + (-1,))
else:
t = time.mktime(data[:8] + (0,))
return t - data[9] - time.timezone
except TypeError:
return time.mktime(data[:8] + (-1,))



Auburn fans are like slinkys... not really good for anything but they
still bring a smile to your face when you push them down a flight of
stairs.

To argue that honorable conduct is only required against an honorable
enemy degrades the Americans who must carry out the orders. -- Charles
Krulak, Former Commandant of the Marine Corps

We are all slave to our own paradigm. -- Joshua Williams

If the letters PhD appear after a person's name, that person will
remain outdoors even after it's started raining. -- Jeff Kay
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: TypeError Exception in email lib

[BJ Swope]

On Mon, Feb 15, 2010 at 2:31 PM, Stephen Hansen  wrote:
> On Mon, Feb 15, 2010 at 10:53 AM, BJ Swope  wrote:
>>
>>  File "/usr/lib/python2.5/email/_parseaddr.py", line 142, in mktime_tz
>>    if data[9] is None:
>> TypeError: 'NoneType' object is unsubscriptable
>>
>> I'm parsing a bunch of spam and using the date field from the spams
>> for a date-time stamp.
>>
>> I've fixed the lib on my box to place the call inside a try/except
>> clause to catch the exception now, but it seems the module has a bug
>> in it.
>
> While there may or may not be a bug in the library, I don't think its where
> you're fixing. Just because an exception occurs in a function doesn't mean
> that function is broken: its documented as accepting a 10 item tuple, only.
> Functions in the stdlib generally -should- throw exceptions on invalid
> input.
> Someone's passing None into it, which its not allowed to do. So -that's-
> where the bug probably is, I think. (Although it may not be the immediate of
> mktime_tz; it could be happening higher up on the stack)
> Advice: Always post complete tracebacks to c.p.l/python-list :)
> --S


>From the module:

def mktime_tz(data):
"""Turn a 10-tuple as returned by parsedate_tz() into a UTC timestamp."""
if data[9] is None:
   # No zone info, so localtime is better assumption than GMT
   return time.mktime(data[:8] + (-1,))
else:
t = time.mktime(data[:8] + (0,))
return t - data[9] - time.timezone


It appears that the module is trying to accommodate the potential
missing TZ data because poorly written emails are missing the TZ data.

I discarded all the crontab emails that had the full traceback in
them.  I took out the try/except clause in the hopes that I'll get
another exception soon.

If I do I'll post the entire exception traceback.
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: TypeError Exception in email lib

[BJ Swope]

On Mon, Feb 15, 2010 at 2:47 PM, BJ Swope  wrote:
> On Mon, Feb 15, 2010 at 2:31 PM, Stephen Hansen  wrote:
>> On Mon, Feb 15, 2010 at 10:53 AM, BJ Swope  wrote:
>>>
>>>  File "/usr/lib/python2.5/email/_parseaddr.py", line 142, in mktime_tz
>>>    if data[9] is None:
>>> TypeError: 'NoneType' object is unsubscriptable
>>>
>>> I'm parsing a bunch of spam and using the date field from the spams
>>> for a date-time stamp.
>>>
>>> I've fixed the lib on my box to place the call inside a try/except
>>> clause to catch the exception now, but it seems the module has a bug
>>> in it.
>>
>> While there may or may not be a bug in the library, I don't think its where
>> you're fixing. Just because an exception occurs in a function doesn't mean
>> that function is broken: its documented as accepting a 10 item tuple, only.
>> Functions in the stdlib generally -should- throw exceptions on invalid
>> input.
>> Someone's passing None into it, which its not allowed to do. So -that's-
>> where the bug probably is, I think. (Although it may not be the immediate of
>> mktime_tz; it could be happening higher up on the stack)
>> Advice: Always post complete tracebacks to c.p.l/python-list :)
>> --S
>
>
> From the module:
>
> def mktime_tz(data):
>    """Turn a 10-tuple as returned by parsedate_tz() into a UTC timestamp."""
>    if data[9] is None:
>       # No zone info, so localtime is better assumption than GMT
>       return time.mktime(data[:8] + (-1,))
>    else:
>        t = time.mktime(data[:8] + (0,))
>        return t - data[9] - time.timezone
>
>
> It appears that the module is trying to accommodate the potential
> missing TZ data because poorly written emails are missing the TZ data.
>
> I discarded all the crontab emails that had the full traceback in
> them.  I took out the try/except clause in the hopes that I'll get
> another exception soon.
>
> If I do I'll post the entire exception traceback.
>


Speak of the devil and demons appear...

 /logs/python/imap_fetcher/spam_serv1.bigbluenetworks.com.py

Parsing of emails for spam at serv1.bigbluenetworks.com failed.

Traceback (most recent call last):
  File "/logs/python/imap_fetcher/spam_serv1.bigbluenetworks.com.py",
line 81, in 
clean_stale_mail()
  File "/logs/python/imap_fetcher/spam_serv1.bigbluenetworks.com.py",
line 24, in clean_stale_mail
utc_msg_date = email.utils.mktime_tz(msg_date2)
  File "/usr/lib/python2.5/email/_parseaddr.py", line 142, in mktime_tz
if data[9] is None:
TypeError: 'NoneType' object is unsubscriptable





def clean_stale_mail():
msg_date1= the_email.get('Date')
msg_date2 = email.utils.parsedate_tz(msg_date1)
try:
utc_msg_date = email.utils.mktime_tz(msg_date2)
except OverflowError:
M.store(msg_id, '+FLAGS.SILENT', '\\Deleted')
return
utc_stale_date = time.time() - (86000*stale_days)
if utc_msg_date <= utc_stale_date:
M.store(msg_id, '+FLAGS.SILENT', '\\Deleted')


try:
#M = imaplib.IMAP4(HOST)
M = imaplib.IMAP4_SSL(HOST)
M.login(USER, PASSWD)
M.select(MAILBOX)

response, msg_list = M.search(None, 'ALL') # response is IMAP
response, msg_list is list of Message IDs

for msg_id in msg_list[0].split(): #msg_list[0] is a space
separated string of message ids
response, message = M.fetch(msg_id, '(RFC822)') # response is
the IMAP response, message is an RFC222 message

msg = email.FeedParser.FeedParser( )
msg.feed(message[0][1])
the_email = msg.close()

clean_stale_mail()

if the_email.is_multipart():
for part in the_email.walk():
if part.get_content_type() == 'text/html':
decoded_part = part.get_payload(decode=1)
soup_parse(decoded_part)
elif the_email.get_content_type() == 'text/html':
decoded_part = the_email.get_payload(decode=1)
soup_parse(decoded_part)
elif the_email.get_content_type() == 'text/plain':
msg_payload = the_email.get_payload()
manual_parse(msg_payload)
else:
continue
#print msg_id, "Did't match any defined content types..."
#print the_email
M.expunge()
M.close()
M.logout()
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: TypeError Exception in email lib

[BJ Swope]

On Mon, Feb 15, 2010 at 3:42 PM, MRAB  wrote:
> BJ Swope wrote:
> [snip]
>>
>> def clean_stale_mail():
>>    msg_date1= the_email.get('Date')
>
> What is the value of 'msg_date1' at this point?
>
>>    msg_date2 = email.utils.parsedate_tz(msg_date1)
>
> What is the value of 'msg_date2' at this point?
>
> The docs say that parsedate_tz() can return a 10-tuple or None.
>
> Presumably, if it can't parse the date then it returns None.
>

> [snip]
>

msg_date1:  @@DATE
msg_date2:  None

Thanks MRAB, Dave and Stephen!

The spam bot didn't populate the date field with anything remotely
resembling the date.  The @@DATE var was left in the Date header.

In reading the module I misunderstood what the "if date[9] is None:" was doing.

I'll wrap my calls in a try/except.
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: Spam from gmail (Was: fascism)

[BJ Swope]

>
> If you like, but I tend to interpret "meta-" as idempotent. It's easier on
> my aspirin budget.
>
> --
> Robert Kern

And here I thought it was little blue pills for idempotentcy...




Life is a sexually transmitted disease with a 100% fatality rate. -- brazzy

Auburn fans are like slinkys... not really good for anything but they
still bring a smile to your face when you push them down a flight of
stairs.

To argue that honorable conduct is only required against an honorable
enemy degrades the Americans who must carry out the orders. -- Charles
Krulak, Former Commandant of the Marine Corps

We are all slave to our own paradigm. -- Joshua Williams

If the letters PhD appear after a person's name, that person will
remain outdoors even after it's started raining. -- Jeff Kay
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: factorial of negative one (-1)

[Bj Raz]

On Tue, Nov 2, 2010 at 12:57 PM, Terry Reedy  wrote:

> On 11/2/2010 6:11 AM, Hrvoje Niksic wrote:
>
>  1.1 .hex()
>
 '0x1.1999ap+0'
>>
>> Here it is immediately obvious that the final digit of the infinite
>> sequence "1.1999..." is rounded from 9 to a.  Printing the number with
>> any more digits would just reveal zeros, as expected.
>>
>> Does anyone know why Python doesn't accept hex float literals in source
>> code?
>>
>
> Assuming that the parser would have no problem with them:
> 1. the format is relatively recent
> 2. you can write float.fromhex('')
> 3. it never occurred to anyone to do so
> 4. literals are values supplied by the programmer; hex float values are
> rare and when they do occur, they are usually the stored output of a
> previous .hex() in Python or similar in other languages.
> 5. too easy to confuse in quick reading with normal float literals
> 6. the format is a bit weird and too esoteric for most programmers; they
> should not be part of the basic syntax that everyone has to learn; someone
> who reads float.fromhex(something) can look it up.
>
> --
> Terry Jan Reedy
>
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
I have just realized that there is a program called PyNum that would be of
great help to me, but I can't seem to figure out how to use it after
installing, or how to build it with Python 2.7
-- 
http://mail.python.org/mailman/listinfo/python-list

Passing Variable(s) as kwargs

[BJ Swope]

Hello All.

I am trying to use values, retrieved from a config file, as kwargs and not
having any luck.  Well at least I think that's what I'm trying to do ;)

Any suggestions would be most appreciated.

Here's the exception:

Traceback (most recent call last):
  File "c:\dev\LogServerMonitor\LogServerMonitor.py", line 246, in 
sched.add_cron_job(check_logging_db, minute = '*/run_interval_quantity')
  File "c:\Python26\lib\site-packages\apscheduler\scheduler.py", line 249,
in add_cron_job
second)
  File "c:\Python26\lib\site-packages\apscheduler\triggers.py", line 22, in
__init__
self._compile_expressions(minutes, 'minute')
  File "c:\Python26\lib\site-packages\apscheduler\triggers.py", line 43, in
_compile_expressions
compiled_expr_list = [compile_single(expr) for expr in expr_list]
  File "c:\Python26\lib\site-packages\apscheduler\triggers.py", line 36, in
compile_single
(expr, fieldname))
ValueError: Unrecognized expression "*/run_interval_quantity" for field
"minute"



An example of what I am doing is:
##
Config File Contents:
[RunInterval]
#How often the application queries the DB to look for the date of
#the last entry (Default every 1 Minute).

#Valid RunInterval Quantities are integers > 0
RunIntervalQuantity: 1

#Valid RunInterval Types are S=Seconds, M=Minutes, H=Hours, D=Days
RunIntervalType: M

##

My Code


config = ConfigParser.ConfigParser()
try:
config.readfp(open(config_file))
except:
sys.stderr.write('Config file, "%s", is missing or unreadable. Exiting.'
% config_file)
sys.stderr.write('ERROR: %s\r\n' % str(err))
sys.exit(1)


def getOption(section, option):
try:
opt_value = config.get(section, option)
return opt_value
except (ConfigParser.NoOptionError), err:
sys.stderr.write( "Application requires \"%s\" be defined in the
[%s] section of the config file %s\r\n" % (option, section, config_file))
sys.stderr.write('ERROR: %s\r\n' % str(err))
sys.exit(1)

def getOptionInt(section, option):
try:
opt_value = config.getint(section, option)
return opt_value
except (ValueError, ConfigParser.NoOptionError), err:
sys.stderr.write("Application requires \"%s\" be defined as an
Integer in the \"[%s]\" section of the config file %s" % (option, section,
config_file))
sys.stderr.write('ERROR: %s\r\n' % str(err))
sys.exit(1)



# Start the scheduler
sched = Scheduler()
sched.start()
run_interval_quantity = getOptionInt('RunInterval', 'RunIntervalQuantity')
run_interval_type = getOption('RunInterval', 'RunIntervalType')

if run_interval_type in ['S', 's']:
sched.add_cron_job(check_logging_db, second = '*/run_interval_quantity')
elif run_interval_type in ['M', 'm']:
sched.add_cron_job(check_logging_db, minute = '*/run_interval_quantity')

elif run_interval_type in ['H', 'h']:
sched.add_cron_job(check_logging_db, hour = '*/run_interval_quantity')
elif run_interval_type in ['D', 'd']:
sched.add_cron_job(check_logging_db, day = '*/run_interval_quantity')
else:
my_logger.warning('The value of RunIntervalType in the configuration
file section RunInterval was not one of "S, M, H or D". Running
LogServerMonitor application once per minute by default.')
sched.add_cron_job(check_logging_db, minute = '*')
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: Passing Variable(s) as kwargs

[BJ Swope]

>
> It's complaining that the 'minute' argument which you're passing to
> 'add_cron_job' is '*/run_interval_quantity', which the scheduler
> doesn't understand.
> --
>

Hey, what do you know, there's a forest amongst all those trees...

key_words = '*/%d' % (run_interval_quantity)

sched.add_cron_job(check_logging_db, minute = key_words)

Works!
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: IMAP4_SSL, libgmail, GMail and corporate firewall/proxy

[BJ Swope]

Imap is not on port 443.  IIRC, it's late and I'm to lazy to even google it
right now, but it's port 143 isn't it.



On Wed, Feb 16, 2011 at 11:58 PM, Andrea Gavana wrote:

> Hi All,
>
>I apologize in advance if I'm going to write very stupid things,
> my expertise in http/socket/imap stuff is very close to zero. I'm
> using Python 2.6.5 on Windows XP SP3.
>
> I am trying to access my GMail account from my office, and it appears
> our company's firewall is blocking all SMTP/POP3/IMAP attempts or
> there is simply something I don't understand. My first try was to use
> imaplib as follows:
>
>
> import imaplib
>
> m = imaplib.IMAP4_SSL('imap.gmail.com', 443)
> m.login(username, password)
>
>
> And I get the following:
>
>
> Traceback (most recent call last):
>  File "D:\MyProjects\gmail.py", line 17, in 
>m = imaplib.IMAP4_SSL('imap.gmail.com', 443)
>  File "C:\Python26\lib\imaplib.py", line 1138, in __init__
>IMAP4.__init__(self, host, port)
>  File "C:\Python26\lib\imaplib.py", line 163, in __init__
>self.open(host, port)
>  File "C:\Python26\lib\imaplib.py", line 1150, in open
>self.sslobj = ssl.wrap_socket(self.sock, self.keyfile, self.certfile)
>  File "C:\Python26\lib\ssl.py", line 350, in wrap_socket
>suppress_ragged_eofs=suppress_ragged_eofs)
>  File "C:\Python26\lib\ssl.py", line 118, in __init__
>self.do_handshake()
>  File "C:\Python26\lib\ssl.py", line 293, in do_handshake
>self._sslobj.do_handshake()
> ssl.SSLError: [Errno 8] _ssl.c:480: EOF occurred in violation of protocol
>
>
> OK. Then I googled back and forth for a possible solution, and I got a
> hint that (maybe) the problem could be related to proxy
> authentication. And I tried this solution (which uses SocksiPy) I
> found on the web (username2 and password2 are the user name and
> password for our company's proxy):
>
> import socks
> import socket
>
> proxy_ip = "10.100.100.20"   # Your proxy IP/DNS here
>
> socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5, proxy_ip, 8080, True,
> username2, password2)
> socket.socket = socks.socksocket
>
> import imaplib
>
> m = imaplib.IMAP4_SSL('imap.gmail.com', 443)
> m.login(username, password)
>
>
> This solution just hangs forever at the line:
>
> m = imaplib.IMAP4_SSL('imap.gmail.com', 443)
>
> And it never returns (it never gets to the m.login() stuff).
>
>
> Then I tried with libgmail, giving it the option of setting the proxy
> name and port:
>
> import libgmail
>
> # Connect from behind a proxy www.myproxy.org:3128 using
> # proxy authentication user = 'john', password = 'proxy4321'
> libgmail.PROXY_URL = username2:password2@my_company_proxy:443'  #
> Define the proxy
>
> ga = libgmail.GmailAccount(username, password)
> ga.login()
>
>
> And I got this at first:
>
> Traceback (most recent call last):
>  File "D:\MyProjects\gmail2.py", line 8, in 
>ga.login()
>  File "C:\Python26\lib\site-packages\libgmail.py", line 305, in login
>pageData = self._retrievePage(req)
>  File "C:\Python26\lib\site-packages\libgmail.py", line 340, in
> _retrievePage
>req = ClientCookie.Request(urlOrRequest)
>  File "C:\Python26\lib\site-packages\mechanize\_request.py", line 31,
> in __init__
>if not _rfc3986.is_clean_uri(url):
>  File "C:\Python26\lib\site-packages\mechanize\_rfc3986.py", line 63,
> in is_clean_uri
>return not bool(BAD_URI_CHARS_RE.search(uri))
> TypeError: expected string or buffer
>
>
> Then I brutally hacked into mechanize here and there and I was able to
> fix all non-internet related errors. And when I try the libgmail
> solution above now I get:
>
> Traceback (most recent call last):
>  File "D:\MyProjects\gmail2.py", line 8, in 
>ga.login()
>  File "C:\Python26\lib\site-packages\libgmail.py", line 305, in login
>pageData = self._retrievePage(req)
>  File "C:\Python26\lib\site-packages\libgmail.py", line 348, in
> _retrievePage
>resp = self.opener.open(req)
>  File "C:\Python26\lib\site-packages\mechanize\_opener.py", line 193, in
> open
>response = urlopen(self, req, data)
>  File "C:\Python26\lib\site-packages\mechanize\_urllib2_fork.py",
> line 344, in _open
>'_open', req)
>  File "C:\Python26\lib\site-packages\mechanize\_urllib2_fork.py",
> line 332, in _call_chain
>result = func(*args)
>  File "C:\Python26\lib\site-packages\mechanize\_urllib2_fork.py",
> line 1171, in https_open
>return self.do_open(conn_factory, req)
>  File "C:\Python26\lib\site-packages\gmail_transport.py", line 145, in
> do_open
>return ClientCookie.HTTPSHandler.do_open(self,
> ProxyHTTPSConnection.new_auth(self.proxy, self.proxy_user,
> self.proxy_passwd), req)
>  File "C:\Python26\lib\site-packages\mechanize\_urllib2_fork.py",
> line 1118, in do_open
>raise URLError(err)
> urllib2.URLError:  Forbidden ( The ISA Server denied the specified Uniform Resource
> Locator (URL).  )>
>
>
> Just in case, I have tried also with port 80, with similar results:
>
> Traceback (most recent call last):
>  File "D:\MyProjects\gmail2.py", line 8,

Python does not allow a variable named "pass"

[BJ Swope]

I am trying to automate access to a web page that has forms based
authentication.  The password field is named "pass" which python is
not going to like.

Other than asking the website owner to change the name of the field
how can I go about passing that field in the form post?

dev:~$ python
Python 2.5.2 (r252:60911, Jan 24 2010, 14:53:14)
[GCC 4.3.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import urllib
>>> params = urllib.urlencode(dict(past='foo'))
>>> params = urllib.urlencode(dict(passs='foo'))
>>> params = urllib.urlencode(dict(pass='foo'))
  File "", line 1
params = urllib.urlencode(dict(pass='foo'))
  ^
SyntaxError: invalid syntax
-- 
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Re: Python does not allow a variable named "pass"

[BJ Swope]

 urllib.urlencode({'pass' : 'foo'})
> 'pass=foo'

>
>
> --- Giampaolo
> http://code.google.com/p/pyftpdlib
> http://code.google.com/p/psutil
> --
> http://mail.python.org/mailman/listinfo/python-list
>

Thank you!
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: Why does this group have so much spam?

[BJ Swope]

And I would kindly appreciate it if you fellas wouldn't go solving
this little spam problem!  Selling Anti-Spam industry leading
appliances has managed to put me in a rather nice house and I'd hate
to lose it just because you fellas went and solved the problem! ;)



On Thu, Sep 3, 2009 at 11:24 PM, r wrote:
>
> *ahem*! You guy's do remember this thread (?at one time in history?)
> was about spam on this list, right? Not internet connection fees. ;-)
> --
> http://mail.python.org/mailman/listinfo/python-list
>



-- 
We are all slave to our own paradigm. -- Joshua Williams

If the letters PhD appear after a person's name, that person will
remain outdoors even after it's started raining. -- Jeff Kay
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: Dynamic Form

[BJ Swope]

If you are trying to avoid the browser caching the pages so that they fetch
a new copy of the page every time, add the following 2 meta tags to the
header of the html page:




Those don't guarantee that the browser won't cache the page but it should
help the situation.

If on the other hand, you only want to populate each company's table with
the data from the form that is currently being submitted, you would run a
delete query on that company's table before you do the insert of the current
form's data.

I have some questions for you.

1. Why create a distinct table for each company?  Why not have a single
table called lets say, "catalog".  Have company be just an additional field
in the catalog table.  This way you can avoid having to create distinct
tables every time somebody submits the form with a distinct company.

2.  Why do you use build your sql statements differently and call
cursor.execute() differently.  In the first sql declaration you are using a
static string then using the string substitution when you make the
cursor.execute() call.  In the second sql declaration you perform the string
substitiution and then make the cursor.execute() call with the resulting
variable.  Why not use the same technique in both places.

3.  And as a way to make the catalog item entry page easier on the eyes, why
not use tables to give a consistent spacing/alignment.

Replace the following:
  print '\n'
  print "Category: \n" % (str(i))
  print "Item: \n" % (str(i))
  print "Description: \n" % (str(i))
  print "UOM: \n" % (str(i))
  print "Price: \n" % (str(i))

With the following:
  print ""
  print ""
  print "Category" % (str(i))
  print "Item" % (str(i))
  print "Description" % (str(i))
  print "UOM" % (str(i))
  print "Price" % (str(i))
  print ""

Makes the web page much easier to read.


-- 
To argue that honorable conduct is only required against an honorable enemy
degrades the Americans who must carry out the orders. -- Charles Krulak,
Former Commandant of the Marine Corps

We are all slave to our own paradigm. -- Joshua Williams

If the letters PhD appear after a person's name, that person will remain
outdoors even after it's started raining. -- Jeff Kay



On Tue, Sep 22, 2009 at 12:50 PM, Victor Subervi wrote:

> Well it's Web stuff, sure, but it's written in python :) The code follows.
> The problem is that I haven't figured out how to tell the program that the
> user has entered data and to clear the cache of that data so that it's not
> re-entered. How do I do that?
> TIA,
> Victor
>
> snip

> sql = 'Category varchar(100), Item varchar(20), Description
> varchar(255), UOM varchar(20), Price float(7,2)'
> cursor.execute('create table if not exists %s (%s);' % (company, sql))
>
> snip

>   sql = 'insert into %s (Category, Item, Description, UOM, Price)
> values ("%s", "%s", "%s", "%s", "%s");' % (company, cat, item, descr, uom,
> price)
>   cursor.execute(sql)
>
> snip

> i = 0
> while i < num:
>   print '\n'
>   print "Category:  maxlength='100' name='cat%s' />\n" % (str(i))
>   print "Item:  name='item%s' />\n" % (str(i))
>   print "Description:  maxlength='255' name='descr%s' />\n" % (str(i))
>   print "UOM:  name='uom%s' />\n" % (str(i))
>   print "Price:  name='price%s' />\n" % (str(i))
>
>
>
> On Tue, Sep 22, 2009 at 11:34 AM, Simon Forman wrote:
>
>> On Tue, Sep 22, 2009 at 10:46 AM, Victor Subervi
>>  wrote:
>> > Hi;
>> > I have a dynamic form in which I do the following:
>> > 1) Request two fields (company name, number of entries). That is sent
>> back
>> > to the form.
>> > 2) If the two fields are not None, the form requests other data. That,
>> too,
>> > is sent back to the form.
>> > 3) That new data is then entered into a MySQL table.
>> > The problem is, that when I go back to refresh the form, the data is
>> > re-entered into the table! How do I prevent that?
>> > TIA,
>> > Victor
>> >
>>
>> First, this seems like it's not a python question, rather it's seems
>> to be about some web stuff.
>>
>> Second, there's not enough information to tell you anything useful.
>> --
>> http://mail.python.org/mailman/listinfo/python-list
>>
>
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
>
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: Dynamic Form

[BJ Swope]

What is your code not doing?

Are you winding up with duplicate data in the DB?

Is your web browser re-submitting the form with the same data if you refresh
the screen?

Is your web browser pre-filling the fields of the form due to caching?

I don't understand what's not working

On Wed, Sep 23, 2009 at 12:40 PM, Victor Subervi wrote:

> I've been trying the hidden field, but the problem is that when I set the
> variable flag, it stays in memory. I would rather just pass a var like I've
> been trying, but I don't think it's possible. Any ideas? Is a session cookie
> the only way? Here's more simplified code:
>
> #!/usr/bin/python
>
> import cgitb; cgitb.enable()
> import cgi
> import sys,os
> sys.path.append(os.getcwd())
> import MySQLdb
> import string, re
>
> def client():
>   form = cgi.FieldStorage()
>   client = string.replace(string.replace(form.getfirst('client', ''), "'",
> '''), '"', '"')
>   flag = form.getfirst('flag', '')
>   print "Content-Type: text/html"
>   print
>   print """
>  http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd";>
> http://www.w3.org/1999/xhtml";>
> 
> """
>   if flag == '':
> print """
> 
> Company Name:  name='client' />
> 
> 
>   
> 
> 
> 
> """
>   else:
> host = 'h'
> db = 'db'
> user = 'u'
> passwd = '1'
> database = MySQLdb.connect(host, user, passwd, db)
> cursor = database.cursor()
> cursor.execute('insert into companies (client);' % (client))
> cursor.close()
> print ''
>
> client()
>
> TIA,
> V
>
>
> On Tue, Sep 22, 2009 at 1:43 PM, Dennis Lee Bieber 
> wrote:
>
>> On Tue, 22 Sep 2009 12:50:31 -0400, Victor Subervi
>>  declaimed the following in
>> gmane.comp.python.general:
>>
>> > Well it's Web stuff, sure, but it's written in python :) The code
>> follows.
>> > The problem is that I haven't figured out how to tell the program that
>> the
>> > user has entered data and to clear the cache of that data so that it's
>> not
>> > re-entered. How do I do that?
>>
>> Remember, HTTP is a stateless protocol. EACH submission is
>> considered a totally new transaction with no memory of the previous
>> processing.
>>
>>Possible solutions...
>>
>> *   Use a session cookie that identifies what phase in the multistep
>> processing you are in...
>>
>> *   Use a hidden field in the form that defaults to, say "False", when
>> you first display the form, but then gets set to "True" during the first
>> response process (and is then sent back out with "True" so the second
>> response takes a different branch).
>>
>> --
>>Wulfraed Dennis Lee Bieber   KD6MOG
>>wlfr...@ix.netcom.com   HTTP://wlfraed.home.netcom.com/
>>
>> --
>> http://mail.python.org/mailman/listinfo/python-list
>>
>
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
>


-- 
To argue that honorable conduct is only required against an honorable enemy
degrades the Americans who must carry out the orders. -- Charles Krulak,
Former Commandant of the Marine Corps

We are all slave to our own paradigm. -- Joshua Williams

If the letters PhD appear after a person's name, that person will remain
outdoors even after it's started raining. -- Jeff Kay
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: Dynamic Form

[BJ Swope]

1. Did you try the headers for no-caching of the page?
2. If you wish to avoid dupes in a DB, Primary Keys are the tool to prevent
duplicates.


On Thu, Sep 24, 2009 at 11:01 AM, victorsubervi wrote:

> in line...
>
> On Wed, Sep 23, 2009 at 9:13 PM, BJ Swope  wrote:
>
>> What is your code not doing?
>>
>
> see below
>
>>
>> Are you winding up with duplicate data in the DB?
>>
>
> yes
>
>>
>> Is your web browser re-submitting the form with the same data if you
>> refresh the screen?
>>
>
> yes
>
>>
>> Is your web browser pre-filling the fields of the form due to caching?
>>
>
> no
>
> If I must use cookies, do I want cookielib/cookiejar, or just Cookie?
> TIA.
> V
>
>>
>> I don't understand what's not working
>>
>>
>> On Wed, Sep 23, 2009 at 12:40 PM, Victor Subervi > > wrote:
>>
>>> I've been trying the hidden field, but the problem is that when I set the
>>> variable flag, it stays in memory. I would rather just pass a var like I've
>>> been trying, but I don't think it's possible. Any ideas? Is a session cookie
>>> the only way? Here's more simplified code:
>>>
>>> #!/usr/bin/python
>>>
>>> import cgitb; cgitb.enable()
>>> import cgi
>>> import sys,os
>>> sys.path.append(os.getcwd())
>>> import MySQLdb
>>> import string, re
>>>
>>> def client():
>>>   form = cgi.FieldStorage()
>>>   client = string.replace(string.replace(form.getfirst('client', ''),
>>> "'", '''), '"', '"')
>>>   flag = form.getfirst('flag', '')
>>>   print "Content-Type: text/html"
>>>   print
>>>   print """
>>> >> http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd";>
>>> http://www.w3.org/1999/xhtml";>
>>> 
>>> """
>>>   if flag == '':
>>> print """
>>> 
>>> Company Name: >> name='client' />
>>> 
>>> 
>>>   
>>> 
>>> 
>>> 
>>> """
>>>   else:
>>> host = 'h'
>>> db = 'db'
>>> user = 'u'
>>> passwd = '1'
>>> database = MySQLdb.connect(host, user, passwd, db)
>>> cursor = database.cursor()
>>> cursor.execute('insert into companies (client);' % (client))
>>> cursor.close()
>>> print ''
>>>
>>> client()
>>>
>>> TIA,
>>> V
>>>
>>>
>>> On Tue, Sep 22, 2009 at 1:43 PM, Dennis Lee Bieber <
>>> wlfr...@ix.netcom.com> wrote:
>>>
>>>> On Tue, 22 Sep 2009 12:50:31 -0400, Victor Subervi
>>>>  declaimed the following in
>>>> gmane.comp.python.general:
>>>>
>>>> > Well it's Web stuff, sure, but it's written in python :) The code
>>>> follows.
>>>> > The problem is that I haven't figured out how to tell the program that
>>>> the
>>>> > user has entered data and to clear the cache of that data so that it's
>>>> not
>>>> > re-entered. How do I do that?
>>>>
>>>>Remember, HTTP is a stateless protocol. EACH submission is
>>>> considered a totally new transaction with no memory of the previous
>>>> processing.
>>>>
>>>>Possible solutions...
>>>>
>>>> *   Use a session cookie that identifies what phase in the multistep
>>>> processing you are in...
>>>>
>>>> *   Use a hidden field in the form that defaults to, say "False",
>>>> when
>>>> you first display the form, but then gets set to "True" during the first
>>>> response process (and is then sent back out with "True" so the second
>>>> response takes a different branch).
>>>>
>>>> --
>>>>Wulfraed Dennis Lee Bieber   KD6MOG
>>>>wlfr...@ix.netcom.com   
>>>> HTTP://wlfraed.home.netcom.com/<http://wlfraed.home.netcom.com/>
>>>>
>>>> --
>>>>  http://mail.python.org/mailman/listinfo/python-list
>>>>
>>>
>>>
>>> --
>>> http://mail.python.org/mailman/listinfo/python-list
>>>
>>>
>>
>>
>>  --
>> To argue that honorable conduct is only required against an honorable
>> enemy degrades the Americans who must carry out the orders. -- Charles
>> Krulak, Former Commandant of the Marine Corps
>>
>> We are all slave to our own paradigm. -- Joshua Williams
>>
>> If the letters PhD appear after a person's name, that person will remain
>> outdoors even after it's started raining. -- Jeff Kay
>>
>>
>> --
>> http://mail.python.org/mailman/listinfo/python-list
>>
>>
>


-- 
To argue that honorable conduct is only required against an honorable enemy
degrades the Americans who must carry out the orders. -- Charles Krulak,
Former Commandant of the Marine Corps

We are all slave to our own paradigm. -- Joshua Williams

If the letters PhD appear after a person's name, that person will remain
outdoors even after it's started raining. -- Jeff Kay
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: How on Factorial

[Bj Raz]

I'm working on some factorial stuff myself, and I'm running into that issue
that the CPU or ALU (Algorithmic Logical Unit), isn't powerful enough to
compute the numbers I'm trying to produce, including the OS has its own
number crunching limitation for accuracy.

To accurately generate the numbers I want I'd probably need about 200+ 64
bit CPUs or ALUs, thats about 640,000 bit Long.  I can produce about 100
places of accuracy with my i7-950 I think.

@geobird or anyone: does someone have an idea of how to bridge this issue?

Here is what I have in MATLAB currently, I have heard of;
SAGE,
which I've heard is a good alternative to MATLAB.
Here is the script I have from MATLAB; http://pastebin.com/sc1jW1n4, it
takes the natural log of the number huge numbers being generated, and allows
you to work with gigantic numbers more easily.

I don't know how to write this naively into python though without being able
to call functions.
I'm working with differential equations related the the higher roots of -1
(negative one).

On Wed, Oct 27, 2010 at 5:13 AM, Jussi Piitulainen <
jpiit...@ling.helsinki.fi> wrote:

> Geobird writes:
>
> > @ Ulrich : Tx
> > @ Rebert : Appreciate your interpretation.
> >It  made  me think about ternary operation . Say
> >  >>> (a > b) and x or y
> >
> >Are all ternary operations prone to ...( in your words )
> >> It exploits short-circuit evaluation
> >>(http://en.wikipedia.org/wiki/Short-circuit_evaluation ). This is
> >>stunt coding / code golf; no one should actually write factorial
> > like
> >>that.
>
> The purpose of a conditional expression is to select one branch of
> computation and avoid another. Other ternary operations might well
> use the values of all three arguments.
>
> (I agree that no one should write factorial like that, except as
> a joke. I have nothing against (x if (a > b) else y). The trick
> with and and or was used before Python had an actual conditional
> expression.)
> --
> http://mail.python.org/mailman/listinfo/python-list
>
-- 
http://mail.python.org/mailman/listinfo/python-list

factorial of negative one (-1)

[Bj Raz]

I am working with differential equations of the higher roots of negative
one. (dividing enormous numbers into other enormous numbers to come out with
very reasonable numbers).
I am mixing this in to a script for Maya (the final output is graph-able as
a spiral.)
I have heard that Sage , would be a good program
to do this in, but I'd like to try and get this to work in native python if
I can.

The script I am trying to port to Python is; http://pastebin.com/sc1jW1n4.
Since Python can't call functions, I would like to know if there is a work
around.

Thank you
Also; I would also like to know if there is a good way to go about building
Sage for msys.
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: factorial of negative one (-1)

[Bj Raz]

Thank you Robert for the clarification.  Since I'm an amateur programmer,
could you please give me a sample of how I would do it.  I'll take some time
to study arrays as well, and how to write them, I know of lists, and tuples,
and dictionaries; from "Dive into Python". but I am very green around the
ears still. :|

On Fri, Oct 29, 2010 at 11:16 AM, Robert Kern  wrote:

> On 10/29/10 12:02 AM, Chris Rebert wrote:
>
>> On Thu, Oct 28, 2010 at 9:41 PM, Bj Raz  wrote:
>>
>>> I am working with differential equations of the higher roots of negative
>>> one. (dividing enormous numbers into other enormous numbers to come out
>>> with
>>> very reasonable numbers).
>>> I am mixing this in to a script for Maya (the final output is graph-able
>>> as
>>> a spiral.)
>>> I have heard that Sage, would be a good program to do this in, but I'd
>>> like
>>> to try and get this to work in native python if I can.
>>> The script I am trying to port to Python is;
>>> http://pastebin.com/sc1jW1n4.
>>>
>>
>> Unless your code is really long, just include it in the message in the
>> future.
>> So, for the archive:
>> indvar = 200;
>> q = 0;
>> lnanswer = 0;
>> for m = 1:150
>>   lnanswer = (3 * m) * log(indvar) - log(factorial(3 * m))  ;
>> q(m+1) = q(m)+ ((-1)^m) * exp(lnanswer);
>> end
>> lnanswer
>> q
>>
>> Also, it helps to point out *what language non-Python code is in*. I'm
>> guessing MATLAB in this case.
>>
>> Naive translation attempt (Disclaimer: I don't know much MATLAB):
>>
>> from math import log, factorial, exp
>> indvar = 200
>> q = [0]
>> lnanswer = 0
>> for m in range(1, 151):
>> lnanswer = (3 * m) * log(indvar) - log(factorial(3 * m))
>> q.append(q[-1] + (1 if m % 2 == 0 else -1) * exp(lnanswer))
>> print(lnanswer)
>> print(q)
>>
>
> I promised that I would reply when the OP posted here. Except you gave the
> answer that I would have.
>
> To the OP: In your code snippet, q(m+1) and q(m) are not function calls.
> They are array indexing operations (with the special semantics that
> assigning beyond the last element in the array appends a new element to the
> array). You are not setting the result of a function to anything, just
> building up an array of results. You don't need symbolic math libraries like
> SAGE for this.
>
> --
> Robert Kern
>
> "I have come to believe that the whole world is an enigma, a harmless
> enigma
>  that is made terrible by our own mad attempt to interpret it as though it
> had
>  an underlying truth."
>  -- Umberto Eco
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
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Re: factorial of negative one (-1)

[Bj Raz]

On Fri, Oct 29, 2010 at 1:02 AM, Chris Rebert  wrote:

> On Thu, Oct 28, 2010 at 9:41 PM, Bj Raz  wrote:
> > I am working with differential equations of the higher roots of negative
> > one. (dividing enormous numbers into other enormous numbers to come out
> with
> > very reasonable numbers).
> > I am mixing this in to a script for Maya (the final output is graph-able
> as
> > a spiral.)
> > I have heard that Sage, would be a good program to do this in, but I'd
> like
> > to try and get this to work in native python if I can.
> > The script I am trying to port to Python is;
> http://pastebin.com/sc1jW1n4.
>
> Unless your code is really long, just include it in the message in the
> future.
> So, for the archive:
> indvar = 200;
> q = 0;
> lnanswer = 0;
> for m = 1:150
>  lnanswer = (3 * m) * log(indvar) - log(factorial(3 * m))  ;
> q(m+1) = q(m)+ ((-1)^m) * exp(lnanswer);
> end
> lnanswer
> q
>
> Also, it helps to point out *what language non-Python code is in*. I'm
> guessing MATLAB in this case.
>
> Naive translation attempt (Disclaimer: I don't know much MATLAB):
>
> from math import log, factorial, exp
> indvar = 200
> q = [0]
> lnanswer = 0
> for m in range(1, 151):
>lnanswer = (3 * m) * log(indvar) - log(factorial(3 * m))
>q.append(q[-1] + (1 if m % 2 == 0 else -1) * exp(lnanswer))
> print(lnanswer)
> print(q)
>
> Cheers,
> Chris
> --
> http://blog.rebertia.com
>
I'm sorry I didn't read the thread very carefully. thank you for your help
Chris. :)
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Re: factorial of negative one (-1)

[Bj Raz]

Simply out of curiosity is there a way to force python to print more then 16
places from the decimal? For better accuracy.

On Mon, Nov 1, 2010 at 4:19 AM, Bj Raz  wrote:

>
>
> On Fri, Oct 29, 2010 at 1:02 AM, Chris Rebert  wrote:
>
>> On Thu, Oct 28, 2010 at 9:41 PM, Bj Raz  wrote:
>> > I am working with differential equations of the higher roots of negative
>> > one. (dividing enormous numbers into other enormous numbers to come out
>> with
>> > very reasonable numbers).
>> > I am mixing this in to a script for Maya (the final output is graph-able
>> as
>> > a spiral.)
>> > I have heard that Sage, would be a good program to do this in, but I'd
>> like
>> > to try and get this to work in native python if I can.
>> > The script I am trying to port to Python is;
>> http://pastebin.com/sc1jW1n4.
>>
>> Unless your code is really long, just include it in the message in the
>> future.
>> So, for the archive:
>> indvar = 200;
>> q = 0;
>> lnanswer = 0;
>> for m = 1:150
>>  lnanswer = (3 * m) * log(indvar) - log(factorial(3 * m))  ;
>> q(m+1) = q(m)+ ((-1)^m) * exp(lnanswer);
>> end
>> lnanswer
>> q
>>
>> Also, it helps to point out *what language non-Python code is in*. I'm
>> guessing MATLAB in this case.
>>
>> Naive translation attempt (Disclaimer: I don't know much MATLAB):
>>
>> from math import log, factorial, exp
>> indvar = 200
>> q = [0]
>> lnanswer = 0
>> for m in range(1, 151):
>>lnanswer = (3 * m) * log(indvar) - log(factorial(3 * m))
>>q.append(q[-1] + (1 if m % 2 == 0 else -1) * exp(lnanswer))
>> print(lnanswer)
>> print(q)
>>
>> Cheers,
>> Chris
>> --
>> http://blog.rebertia.com
>>
> I'm sorry I didn't read the thread very carefully. thank you for your help
> Chris. :)
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Re: factorial of negative one (-1)

[Bj Raz]

On Nov 1, 2010, at 5:42 AM, Hrvoje Niksic  wrote:

> Chris Rebert  writes:
> 
>> (2) The underlying double-precision floating-point number only has ~16
>> decimal digits of precision, so it's pointless to print out "further"
>> digits.
> 
> A digression which has nothing to do with Raj's desire for "better
> accuracy"...
> 
> Printing out further digits (without quotes) is not pointless if you
> want to find out the exact representation of your number in python's
> floating point, for educational purposes or otherwise.  Python has a
> little-known but very instructive method for determining the makeup of a
> float:
> 
 1.1 .as_integer_ratio()
> (2476979795053773, 2251799813685248)
> 
> 1.1 is represented with the closest fraction with a power-of-two
> denominator, 2476979795053773/2251799813685248.  As is the case with all
> Python floats, this fraction has an exact decimal representation,
> 1.100088817841970012523233890533447265625.  It is not that
> unreasonable to request that the whole number be printed, and python
> will happily oblige:
> 
 "%.100g" % 1.1
> '1.100088817841970012523233890533447265625'
> 
> The digits after the first cluster of zeros are not garbage, at least
> not in the sense of what you get reading uninitialized memory and such;
> they're mathematically precise decimal digits of the number that "1.1"
> has turned into during conversion to float.

Thank you Chris. 
> -- 
> http://mail.python.org/mailman/listinfo/python-list
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Re: factorial of negative one (-1)

[Bj Raz]

On Mon, Nov 1, 2010 at 8:52 AM, Bj Raz  wrote:

> On Nov 1, 2010, at 5:42 AM, Hrvoje Niksic  wrote:
>
> > Chris Rebert  writes:
> >
> >> (2) The underlying double-precision floating-point number only has ~16
> >> decimal digits of precision, so it's pointless to print out "further"
> >> digits.
> >
> > A digression which has nothing to do with Raj's desire for "better
> > accuracy"...
> >
> > Printing out further digits (without quotes) is not pointless if you
> > want to find out the exact representation of your number in python's
> > floating point, for educational purposes or otherwise.  Python has a
> > little-known but very instructive method for determining the makeup of a
> > float:
> >
> >>>> 1.1 .as_integer_ratio()
> > (2476979795053773, 2251799813685248)
> >
> > 1.1 is represented with the closest fraction with a power-of-two
> > denominator, 2476979795053773/2251799813685248.  As is the case with all
> > Python floats, this fraction has an exact decimal representation,
> > 1.100088817841970012523233890533447265625.  It is not that
> > unreasonable to request that the whole number be printed, and python
> > will happily oblige:
> >
> >>>> "%.100g" % 1.1
> > '1.100088817841970012523233890533447265625'
> >
> > The digits after the first cluster of zeros are not garbage, at least
> > not in the sense of what you get reading uninitialized memory and such;
> > they're mathematically precise decimal digits of the number that "1.1"
> > has turned into during conversion to float.
>
> Thank you Chris.
> > --
> > http://mail.python.org/mailman/listinfo/python-list
>
Would "math.fsum" be of any use to me? and what is a good application of the
".as_integer_ratio()" for the out put?
Also I really just need the last number that starts to replete at the end of
each iteration. Is there a way to isolate that number that repeats a whole
bunch of times? Or at least cut off the output when it stops repeating?
So I get an output that looks like; "[0, -1.,
-1.2445, -1.2458553791887126, -1.2458468280690504,
-1.2458468531272766, -1.2458468530863318, -1.2458468530863729]" or
"[-1.2458468530863729]" and not:

[0, -1., -1.2445, -1.2458553791887126,
-1.2458468280690504, -1.2458468531272766, -1.2458468530863318,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729,
-1.2458468530863729, -1.2458468530863729, -1.2458468530863729].
and when I am working with, other numbers; is there a way to get more
repetitions if I really need it?

Thank you everyone for all your suggestions and help. :)
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Re: When someone from Britain speaks, Americans hear a "British accent"...

[BJ in Texas]

muldoon <[EMAIL PROTECTED]> wrote:
|| Americans consider having a "British accent" a sign of
|| sophistication and high intelligence. Many companies hire
|| salespersons from Britain to represent their products,etc.
|| Question: When the British hear an "American accent," does it
|| sound unsophisticated and dumb?
||
|| Be blunt. We Americans need to know. Should we try to change
|| the way we speak? Are there certain words that sound
|| particularly goofy? Please help us with your advice on this
|| awkward matter.

Which of the British accents?

BJ


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Re: Mental Abuse

[BJ in Texas]

[EMAIL PROTECTED] wrote:
|| My abuser has been using the medical device to harass me the
|| last 4-5 years. I have no idea what type of a device is being
|| used on me. I believe the device is only available to
|| licensed pharmacist(s). I am not very familiar with the
|| intend usage of the device. As I understand, the device can
|| be used as a stimulator; 24 hours therapeutic session; ease
|| off a lot of emotion--anger, sadness, fear...ect.; enhance
|| recovery of mental illnesses. If abuse is the intention, it
|| can be used to sense what the other person's thinking or as a
|| form of communication through inner voices. In my case, the
|| abuser has been using it to insult me in every way he could
|| possible think of. As I know, a single device is only
|| effective if you are in the same city. Mulitple devices can
|| reach billion of people world wide.  Fear of being evaluate
|| as mental ill due to lack of physical evidence. I am hoping
|| to find out more about the device, before reporting to the
|| police. If anyone know what type of a device has been using
|| on me. Who manufacture such a device. What can I do to stop
|| the abuser from such criminal act? Please email me at
|| [EMAIL PROTECTED], I would greatly appreciated.

I am not sure of the device being used but try this
http://zapatopi.net/afdb/

-- 
"The power of artificial intelligence is nothing compared to the
power of human stupidity."


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Re: Little tool - but very big size... :-(

[BJ in Texas]

[EMAIL PROTECTED] wrote:
|| 11MB is seldom a concern for today's machine.
||

A good windows/microsoft attitude.. :-)


-- 
"Last week, I stated this woman was the ugliest woman I had ever
seen. I have since been visited by her sister, and now wish to
withdraw that statement." -- Mark Twain


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