On Mon, Jan 12, 2015 at 6:15 AM, Skip Montanaro
wrote:
> ... first implemented first ...
s/first/doctest/
Darn auto-correct...
Skip
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On Mon, Jan 12, 2015 at 7:00 AM, Steven D'Aprano <
[email protected]> wrote:
> I didn't mean to give the impression that doctest was wrong to be fussy, or
> dumb if you prefer. I think it's exactly the right behaviour.
>
I wasn't actually concerned that Steven might have misund
Assuming you have gdb available, you should be able to attach to the
running process, then set a breakpoint in relevant functions (like
exit() or abort()). Once there, you can pick through the C stack
manually (kind of tedious) or use the gdbinit file which comes with
Python to get a Python stack t
On Thu, Jan 15, 2015 at 7:04 AM, Roy Smith wrote:
> I don't know which zen this is, but "Beauty is important".
Kinda near the front:
% python -m this
The Zen of Python, by Tim Peters
Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
...
:-)
Skip
On Thu, Jan 15, 2015 at 8:29 AM, Steven D'Aprano <
[email protected]> wrote:
> Now I shall try very hard to forget I ever saw it.
There are some things, no matter how hard you try, which cannot be
"unseen". :-)
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If you want to show off the REPL, I'd got for iPython and show them some
simple matplotlib examples (plotting sin waves, maybe dig up a CSV file on
the net with some data your friend is familiar with, etc)
Skip
On Fri, Jan 16, 2015 at 9:03 AM, Chris Angelico wrote:
> Scenario: You're introduci
On Sat, Jan 17, 2015 at 5:59 AM, Jussi Piitulainen
wrote:
> How far do you want to go? Is "a b + c" the same as "a(b) + c" or the
> same as "a(b + c)"?
I think there is only one practical interpretation, the one that all
shells I'm familiar with have adopted:
a(b, +, c)
> And I don't reall
On Thu, Jan 22, 2015 at 12:03 PM, Sturla Molden
wrote:
> Python will no longer be dynamic, it will just be a slow static language.
>
> Yes, Python could still be used as a dynamic language, but nobody will
> allow you to do it. Even packages in widespread use will be banned because
> they don't t
On Thu, Jan 22, 2015 at 1:22 PM, Marko Rauhamaa wrote:
> > Just please don't FUD this list.
>
> Why do you think opinions on Python's future should be kept off this
> list?
The way you couched your opinion as a certainty, as if you could see the
future, not as if you had an opinion stated like,
On Thu, Jan 22, 2015 at 1:56 PM, Sturla Molden
wrote:
> On 22/01/15 20:43, Skip Montanaro wrote:
>
> The way you couched your opinion as a certainty, as if you could see the
>> future,
>>
>
> How do you know I cannot?
Perhaps you can, but then your statements
On Thu, Jan 22, 2015 at 2:31 PM, Skip Montanaro
wrote:
> Perhaps you can, but then your statements are opinions, then are they?
Crap. I meant:
"... then your statements aren't opinions ..."
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On Tue, Jan 27, 2015 at 7:26 PM, Steven D'Aprano <
[email protected]> wrote:
> (2) Algol, Ada, Boo, C, C#, C++, Cobol, Cobra, D, F#, Fantom, Fortran, Go,
> Haskell, Java, Julia, Kotlin, Oberon, Pascal, Rust, Scala and dozens
> (hundreds?) of other languages disagree with you.
>
On Wed, Jan 28, 2015 at 7:07 AM, Andres Riancho
wrote:
> The feature I'm specially interested in is the ability to spawn
> processes [1] instead of forking, which is not present in the 2.7
> version of the module.
>
Can you explain what you see as the difference between "spawn" and "fork"
in thi
On Wed, Jan 28, 2015 at 12:16 PM, Mark Lawrence
wrote:
> C and C++ are weakly and statically typed languages. Python is a strongly
> and dynamically typed language.
Feel free to edit this Google spreadsheet:
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On Wed, Jan 28, 2015 at 12:34 PM, Skip Montanaro
wrote:
>
>
> On Wed, Jan 28, 2015 at 12:16 PM, Mark Lawrence
> wrote:
>>
>> C and C++ are weakly and statically typed languages. Python is a strongly
>> and dynamically typed language.
>
>
> Feel fre
On Thu, Jan 29, 2015 at 11:17 AM, Mark Lawrence wrote:
>
> ... but what do you guys and gals think?
I saw that blog referenced elsewhere a day or two ago. I think he's
correct. There are the occasional instance where I need to recover
from an exception no matter what caused it. In cases where I f
On Fri, Jan 30, 2015 at 10:09 AM, Robert Chen wrote:
>
> how to parse sys.argv as dynamic parameters to another function?
>
>
> fun(sys.argv)
Not sure what you mean by "dynamic", but I think you already have it,
assuming fun is a function which accepts a single list of strings as
its argument.
On Fri, Jan 30, 2015 at 12:50 PM, Mario Figueiredo wrote:
> It would help that if instead of weakly typed or strongly typed box,
> they could be classified comparatively to each other. The terms are
> better suited to describe two languages as they stand to each other.
>
> Weakly Typed --
On Sun, Feb 1, 2015 at 12:45 AM, Frank Millman wrote:
> Is this a recognised format, and is there a standard way of parsing it? If
> not, I will have to special-case it, but I would prefer to avoid that if
> possible.
Doesn't look "standard" to me in any fashion. You shouldn't need to
special cas
I build several versions of Python from Mercurial sources on a regular
basis. I am starting on a new collection of programs for some database
work and figured I should start using Python 3. I wanted to look
something up quickly about the sqlite3 module, so I tried "pydoc
sqlite3". That worked fine,
I finally got sort of smart, and started up a pydoc server. Looking at
the sqlite3 docs through my browser, I see right off the bat, I see
#-*- coding: ISO-8859-1 -*-
# pysqlite2/__init__.py: the pysqlite2 package.
#
# Copyright (C) 2005 Gerhard Häring
so my challenge is how to tell Python my te
On Sun, Feb 1, 2015 at 11:20 AM, Peter Otten <[email protected]> wrote:
> Try setting the environment variable
>
> PYTHONIOENCODING=UTF-8
Thanks, but that didn't help. I still get the same exception.
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On Sun, Feb 1, 2015 at 1:35 PM, Peter Otten <[email protected]> wrote:
> $ LANG=en_US.UTF-8 python3 -c 'import locale;
> print(locale.getpreferredencoding(False))'
Aha!
hgpython% LANG=en_US.UTF-8 python3.5 -c 'import locale;
print(locale.getpreferredencoding(False))'
UTF-8
hgpython% LANG=en_US.ut
On Sun, Feb 1, 2015 at 2:31 PM, Chris Angelico wrote:
> Try the other variations: include the hyphen
> but don't capitalize, and the other way around. On my system, all four
> work equally:
Yes, on my system, case doesn't matter, but the hyphen does.
I just tried it out on one of my Linux system
On Tue, Feb 3, 2015 at 10:31 AM, Mark Lawrence
wrote:
> I know that you can target sites, but can you exclude them, e.g.
> -site:stackoverflow.com ?
Yes, you can. Compare the results of these two searches, for example:
git initial push
git initial push -site:stackoverflow.com
Skip
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On Wed, Feb 4, 2015 at 10:53 PM, Abhiram R wrote:
> So is it possible to let everyone know that they need to paste their code
on
> some site like pastebin.com and give us the link here so help can be
> provided better?
Better would be to attach small code snippets.
I agree with Ben about the HTM
Tuple packing. No longer supported in Python 3, but in available in Python <= 2.
Skip
On Thu, Feb 5, 2015 at 10:45 AM, Rustom Mody wrote:
> On Thursday, February 5, 2015 at 9:39:27 PM UTC+5:30, Ian wrote:
>> On Thu, Feb 5, 2015 at 2:40 AM, Steven D'Aprano wrote:
>> > Devin Jeanpierre wrote:
>>
I am trying to process a CSV file using Python 3.5 (CPython tip as of a
week or so ago). According to chardet[1], the file is encoded as utf-8:
>>> s = open("data/meets-usms.csv", "rb").read()
>>> len(s)
562272
>>> import chardet
>>> chardet.detect(s)
{'encoding': 'utf-8', 'confidence': 0.99}
so
On Sun, Feb 8, 2015 at 9:58 PM, Chris Angelico wrote:
> Those three characters are the CP-1252 decode of the bytes for U+2019
> in UTF-8 (E2 80 99). Not sure if that helps any, but given that it was
> an XLSX file, Windows codepages are reasonably likely to show up.
Thanks, Chris. Are you telling
On Sun, Feb 8, 2015 at 10:51 PM, Steven D'Aprano
wrote:
> The second question is, are you
> using Windows?
No, I'm on a Mac (as, I think I indicated in my original note). All
transformations occurred on a Mac. LibreOffice spit out a CSV file
(with those three odd bytes). My script sucked in the C
On Mon, Feb 9, 2015 at 2:38 PM, Skip Montanaro
wrote:
> On Mon, Feb 9, 2015 at 2:05 PM, Zachary Ware
> wrote:
> > If all else fails, you can try ftfy to fix things:
> > http://ftfy.readthedocs.org/en/latest/
>
> Thanks for the pointer. I would prefer to not hand-mangl
On Mon, Feb 9, 2015 at 11:54 AM, Matthew Ruffalo wrote:
> I think it's most likely that the encoding issues happened in the export
> from XLSX to CSV (unless the data is malformed in the original XLSX
> file, of course).
Aha! Lookee here... (my apologies to all you HTML mail haters - sometimes
it
I know this is way off-topic for this group, but I figured if anyone
in the online virtual communities I participate in would know the
answer, the Pythonistas would... Google has so far not been my friend
in this realm.
One of the things I really like about my Skype keyboard (and likely
other "sof
Thanks for all the ideas. As I'm an Emacs user (since Gosmacs in the
early 80s), I will likely focus my attention there first. While the
xkbmap/Xmodmap path seems like it would also work on Linux, I'm
guessing Apple wouldn't allow that sort of thing to sully Mac OS X...
Despite its name
Skip
--
I believe this sort of lexicographical comparison wart is one of the
reasons the Python-dev gang decided that there would be no micro versions >
9. There are too many similar assumptions about version numbers out in the
real world.
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>From over yonder, on python-dev...
> -- Forwarded message --
> From: Steve Dower
> Subject: Re: [Python-Dev] PEP 441 - Improving Python ZIP Application Support
>
> "Go ahead, make my pep."
>
> We should make a python-dev t-shirt with this on it :)
+1 from me as QOTW.
Skip
--
h
I can't offer an explanation, but you might open an issue in the tracker
proposing that it be removed in 3.5. If nothing else, you should get an
authoritative-ish explanation for why it has yet to be deleted.
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On Thu, Feb 19, 2015 at 10:27 AM, Phillip Fleming wrote:
> In my opinion, Python will not take off like C/C++ if there is no ANSI
> standard.
On one side of your statement, what makes you think Python ever wanted
to "take off like C/C++"? On the other side, there are other languages
(Java, PHP, P
On Sun, Feb 22, 2015 at 12:41 PM, Mario Figueiredo wrote:
> The sqlite context manager doesn't close a database connection on
> exit. It only ensures, commits and rollbacks are performed.
Sorry, I haven't paid careful attention to this thread, so perhaps
this has already been suggested, however..
I've been reworking some of the code in the platform I use at work.
I'm the sole developer/maintainer/hard-core user left, so I can pretty
much do what I want with it (convert modules to Cython, delete no
longer used modules, etc). The platform uses PyGtk, so we use signals
and other features of t
Python 2.7.
Anybody available to help?
Thanks,
Skip Montanaro
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On Tue, Feb 25, 2014 at 12:07 PM, Timothy W. Grove wrote:
> Here is an example of Python being used with Maya for animation
> http://vimeo.com/72276442
Maya as in MayaVi, the 3D data visualizer built atop VTK?
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On Tue, Feb 25, 2014 at 1:52 PM, Robert Kern wrote:
> Maya as in Maya, the 3D animation software from AutoDesk.
Ugh. What an unfortunate almost-name-clash...
S
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On Tue, Feb 25, 2014 at 2:32 PM, mauro wrote:
> So I wonder why operations such us intersection, union, difference,
> symmetric difference that are available for sets and are not available
> for dictionaries without going via key dictviews.
What's the correct result of evaluating this expression?
On Tue, Mar 4, 2014 at 11:07 AM, Chris Angelico wrote:
> I don't have time to watch an hour-long video... what'd he do, exactly that?
If you fast forward to 16:14, his talk is about five minutes long. He
wrote a Lisp compiler whose backend is Python.
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I agree with Ben.
In this particular case, it seems you really should be using "=="
unless obj_0, obj_1, and obj_2 are sentinels.
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This seems to be an application-level decision. If so, in your
application, why not just check to see if the file exists, and
implement whatever workaround you deem correct for your needs? For
example (to choose a simple, but rather silly, file naming strategy):
fname = "x"
while os.path.exists(fn
On Wed, Mar 12, 2014 at 9:25 AM, Alex van der Spek wrote:
> with open(os.path.join('path', 'foo.txt', 'rb') as txt:
> reader = csv.reader(txt)
> data = [row.append(year) for row in reader]
Forget deep v. shallow copies. What is the value of the variable year?
And why would you expect li
I've stumbled on a problem with the python-sybase module. If I have a
stored procedure like this:
create stored procedure test_proc
as
return 1
and call it from Python like this:
curs.callproc("test_proc", {})
it's not clear to me where the return status is stored. Currently, the
python-syb
Thanks for the responses. We eventually figured out there appears to
be a bug in the latest version of the python-sybase module (at least
in 0.40, probably in 0.39 as well). It was actually detecting
CS_STATUS_RESULT coming from the server and responding appropriately,
however it was assigning the
> As more and
> more Windows users have moved to 64-bit versions of Windows and
> Outlook, we've had more and more reports of failures.
>
> I think all that's necessary (speaking as someone who knows nothing
> about Windows) is for someone to build a 64-bit version of the
> SpamBayes installer
On Mon, Mar 17, 2014 at 10:11 AM, Mark Lawrence wrote:
>> https://mail.python.org/mailman/listinfo/python-win32 which is gated to
>> gmane.comp.python.windows
>>
>
> Or cgohlke at uci.edu as he maintains this "Unofficial Windows Binaries for
> Python Extension Packages" here http://www.lfd.uci.edu
On Mon, Mar 17, 2014 at 5:06 PM, Terry Reedy wrote:
> Mathematicians genearally write both without spaces.
Mathematicians also have a tendency to use single letter variables and
often escape into non-ASCII character sets as well.
Perhaps it's worth pointing out that pylint complains about most/
On Mon, Mar 17, 2014 at 7:16 PM, Chris Angelico wrote:
> On Tue, Mar 18, 2014 at 10:59 AM, Skip Montanaro wrote:
>> Perhaps it's worth pointing out that pylint complains about most/many
>> infix operations if you don't surround the operator with white space.
>
>
On Wed, Mar 19, 2014 at 5:33 AM, Ian Kelly wrote:
> When is it ever useful though?
About as often as int(0), float(0), or float(0.0) which all work as
expected, though probably don't turn up in a lot of code.
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On Thu, Mar 20, 2014 at 2:55 PM, wrote:
> File "simpleRun.py", line 29
> help= ~/home/lai/Downloads/influence_matrix_files/hprd_inf_.mat)
>^
> SyntaxError: invalid syntax
You need quotes around the filename. It's a string literal.
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On Thu, Mar 20, 2014 at 3:08 PM, wrote:
> simpleRun.py: error: argument -mf/--infmat_file is required
I think you are misinterpreting the actual purpose of the
parser_add_argument() call. It's telling you that *on the command
line* you can specify it using either
-mf some-file-name
or
--infma
Anybody else having trouble getting to Github? I'm trying to get to
the pythondotorg issue tracker:
https://github.com/python/pythondotorg/issues
Thx,
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On Fri, Mar 21, 2014 at 8:24 AM, Larry Martell wrote:
> https://twitter.com/githubstatus
Thanks for the pointer. I'm an old fart and don't use social media
much (in fact, just closed my FB account a couple days ago). Does that
mean I'm a curmudgeon? :-)
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On Tue, Mar 25, 2014 at 2:48 PM, Marko Rauhamaa wrote:
> I don't know if that's a good idea, but that's how it is in lisp/scheme.
>
> Thus, "*" and "1+" are normal identifiers in lisp and scheme.
But parsing Lisp is pretty trivial.
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It's not clear to me what the correct str should be. I think the
desired format changes depending on the relative magnitude of the
timedelta object. For small values (less than a day), I agree, the
behavior is, well, odd. You can get around that easily enough:
>>> d = datetime.timedelta(seconds=-
On Wed, Mar 26, 2014 at 10:04 AM, Roy Smith wrote:
> No, what you said was "negative four days, positive 3605 seconds".
My apologies for not showing all my work, professor. I use datetime
and timedelta objects all the time. I did the arithmetic to go from
3605 to one hour, five minutes in my head
On Wed, Mar 26, 2014 at 10:58 AM, Marko Rauhamaa wrote:
> Fractions of seconds are supported -- the other fields can't be
> fractional.
Actually, it appears that whatever the last value you give can be
fractionated. From the Wikipedia page you referenced:
"The smallest value used may also have
I took a moment to scan the datetime documentation. The behavior of
str() on timedelta objects is very consistent, and matches the
internal representation. From the docs:
str(t) Returns a string in the form [D day[s], ][H]H:MM:SS[.UU],
where D is negative for negative t. (5)
Note (5) reads: S
>> There are,
>> as I see it, two common cases where t is negative:
>>
>> -1 day < t < 0
>>
>> and
>>
>> t <= -1 day
>
> There are two types of negative numbers: Those closer to zero than -1,
> and those not closer to zero than -1. Yeah, I think those are the most
> common cases. :)
Sorry I wa
The print function in Python 3 returns None. The "ok" output is a side
effect. The actual value of evaluating that list comprehension is a
list of three None values.
Skip
On Thu, Apr 10, 2014 at 8:54 AM, length power wrote:
x=['','x1','x2','x3',' ']
x
> ['', 'x1', 'x2', 'x3', ' ']
Before I get up to my neck in gators over this, I was hoping perhaps
someone already had a solution. Suppose I have two classes, A and B,
the latter inheriting from the former:
class A:
def __init__(self):
self.x = 0
class B(A):
def __init__(self):
A.__init__(self)
dir__
undefined until after that little dance was complete.
Skip
On Mon, Apr 21, 2014 at 10:28 AM, Steven D'Aprano
wrote:
> On Mon, 21 Apr 2014 09:06:14 -0500, Skip Montanaro wrote:
>
> [...]
>> Now, dir(inst_b) will list both 'x' and 'y' as attributes (alo
On Thu, May 8, 2014 at 8:46 AM, Ethan Furman wrote:
> Some filtering of your sigs would be appreciated.
Looks like a Zippy the Pinhead quote to me...
http://rosinstrument.com/cgi-bin/fortune.pl/21?97
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On Tue, May 13, 2014 at 3:38 AM, Chris Angelico wrote:
>> Python 2's ambiguity allows me not to answer the tough philosophical
>> questions. I'm not saying it's necessarily a good thing, but it has its
>> benefits.
>
> It's not a good thing. It means that you have the convenience of
> pretending t
On Wed, May 14, 2014 at 3:36 AM, Tamer Higazi wrote:
> myjs =
> '{"AVName":"Tamer","ANName":"Higazi","AAnschrift":"Bauerngasse","AHausnr":"1","APLZ":"55116","AOrt":"Mainz"},{"KontaktTel":["01234","11223344"],{"ZahlungsArt":"0"},{"ZugangsDaten":["[email protected]","mypass"]}'
Following up o
On Thu, May 15, 2014 at 9:29 AM, Marko Rauhamaa wrote:
> Who of you hasn't sworn at a Web editor that gets the formatting all
> messed up when you have typed a backspace in the "wrong place?"
My current pet peeve is the Gmail composition pane. What a load of
crap (especially in rich text mode).
I don't have Windows and since upgrading my Mac to Mavericks I no
longer have Excel of any flavor. I have a few Excel spreadsheets in
which I store parameters from which I generate other config files. I
read those spreadsheets using xlrd.
I am so fed up with LibreOffice's inability to properly sup
On Tue, May 20, 2014 at 2:45 PM, Martin Manns wrote:
>> I am so fed up with LibreOffice's inability to properly support really
>> basic Excel capabilities, I'm about ready to throw my computer out the
>
> Could you please give some examples, what basic Excel capabilities you
> are missing?
That's
On Tue, May 20, 2014 at 11:49 AM, Chris Angelico wrote:
> Okay, I won't suggest Windows INI files, but I'll still suggest taking
> a step back and figuring out exactly what you're trying to accomplish.
> Can you separate out the real data from the formula-derived info, put
> the former into a git-
> Are you familiar with emacs' org mode tables?
> http://orgmode.org/org.html#Tables
No. Thanks for the pointer.
S
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On Wed, May 21, 2014 at 3:53 AM, Rustom Mody wrote:
> Another possibility: Use google drive/docs spreadsheet capability.
> Makes much less mess than libreoffice and will export to standard formats
Correct, though it separates my spreadsheet from the Git repository,
and means anyone else at work w
>From Apple's perspective, there's always platform lock-in. That's good
for them, so it must be good for you, right? :-)
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On Tue, Jun 3, 2014 at 4:49 PM, Mark H Harris wrote:
> I have been engaged in a minor flame debate (locally) over block delimiters
> (or lack thereof) which I'm loosing. Locally, people hate python's
> indentation block delimiting, and wish python would adopt curly braces.
Which reminds me of thi
> I don't understand. That just moves them to a different file --
> doesn't it? You've still got to deal with editing a large table of
> data (for example when I want to add instructions to your assembler).
My guess is it would be more foolproof to edit that stuff with a spreadsheet.
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--
h
>> My guess is it would be more foolproof to edit that stuff with a
>> spreadsheet.
>
> Many years ago, I worked with somebody who used a spreadsheet like
> that.
I really love Emacs, however... One of the traders here where I work
(who shall not be named) had a space-delimited data file with hun
> Has anyone tried Pyspread?
I have not.
I have a fundamental problem with spreadsheets, the extremely narrow view
of the workspace. There was a piece on NPR the other day about some errors
in some modeling applications. I missed most of it (does someone have a
link? I'm on my phone right now), b
Perhaps use datetime?
>>> now = datetime.datetime.now()
>>> now.isoformat()
'2013-08-02T07:37:08.430131'
>>> now.strftime("%f")
'430131'
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> is the third column is only the microsecond?
Yes.
> how could i get this to write with the rest of the time (the hh:mm:ss) ?
It sounds like you really want the time formatted in a particular way,
not just the numeric value of one or more fields. Look at the
documentation for the strftime meth
> The solely valid solution, assuming there is some wish,
> is to define a maximal line width (preferably in SI units ;-)
So, 79 * 8 points == 0.22295696 meters, right? :-)
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> Reading outlook email, I found this:
>
> http://timgolden.me.uk/python/win32_how_do_i/read-my-outlook-inbox.html
>
> There is lots to find via google with 'reading outlook email with python'
You might also want to look at the source for the SpamBayes Outlook plugin:
https://pypi.python.org/pypi
> Can someone suggest me better resources for learning sql/sqlite3?
The concepts behind the Structured Query Language haven't changed much
since Edgar Codd first developed them in the 1970s. (He received the
Turing Award in 1981 for this work.)
Building and querying databases is very easy to do
> I have one on my desk at work whose name I can't remember off the
> top of my head. I still refer to it from time-to-time. If you'd
> like a reference, let me know and I'll check on it at work.
While I think of it:
"The Practical SQL Handbook; Using Structured Query Language," by
Bowman, Emer
> i did:
>
>from time import strftime, time
>from datetime import datetime
>
>now = datetime.now()
>
>self.logfile.write('%s\t'%(strftime("%Y-%m-%d",)))
>self.logfile.write('%s\t'%(now.strftime("%H:%M:%S.%f",)))
Note that you don't need the time module here. Datetime objects h
On Thu, Aug 8, 2013 at 6:40 AM, Neatu Ovidiu wrote:
> This can be useful for doing all kinds of basic stuff. For example if you
> wanted to take 4 items of a list at at a time, do something with them and
> then update the list.
>
> jobs = ['job1', 'job2', 'job3', 'job5', 'job6', 'job7', 'job8',
On Thu, Aug 8, 2013 at 2:30 PM, D. Xenakis wrote:
> HOWTO anyone?
>
> What im trying to succeed here is create one SSH tunnel, so that i can
> connect from a python script running on my pc, to a remote MySQL database
> running on my Host and id like to stick with Python 3.3 .
http://lmgtfy.com/
On Fri, Aug 9, 2013 at 8:10 PM, Steven D'Aprano
wrote:
> I am seeking comments on PEP 450, Adding a statistics module to Python's
> standard library:
>
> http://www.python.org/dev/peps/pep-0450/
>
> Please read the FAQs before asking anything :-)
Given that installing numpy or scipy is generally
> See the Rationale of PEP 450 for more reasons why “install NumPy” is not
> a feasible solution for many use cases, and why having ‘statistics’ as a
> pure-Python, standard-library package is desirable.
I read that before posting but am not sure I agree. I don't see the
screaming need for this pa
On Wed, Aug 14, 2013 at 12:05 PM, wrote:
> Because high-level code isn't supposed to use the os module directly.
That seems a bit extreme. One would hope that Guido and the rest of
the crew created the os module so people would use it instead of
resorting to other lower level hacks. A quick fi
In Guido's own words: "We're all consenting adults here."
http://importthis.tumblr.com/post/6719643315/public-private-attributes
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Read up on "duck typing."
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> When I run the code above, I am told that the IV must be 16 bytes long.
> I'm assuming that the IV (I know that means "Initialization Vector") is
> either the key OR something else I can set. But I don't know how or what
> to do.
Does this Stack Overflow thread help? It looks to me like you are
Consider this little Python script:
import dateutil.parser
import pytz
x = dateutil.parser.parse("2013-08-16 23:00:00+01:00")
localtz = pytz.timezone("America/Chicago")
y = localtz.normalize(x)
When I execute it (Python 2.7.2, dateutil 1.5, pytz 2011h), I get this
traceback:
Traceback (most rec
I have code in the pylockfile package that looks roughly like this
(apologies for the indentation - I'm growing to dislike Gmail for
typing code fragments):
try:
write_pid_to_lockfile(somefile)
except OSError as exc:
if conditions_i_can_handle:
do_other_stuff...
else:
ra
> Do this:
>
> raise LockFailed("Failed to create %s" % self.path) from None
Thanks. Is there some construct which will work in 2.x and 3.x?
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