M.E.Farmer wrote:
> Div is a block level tag and span isn't.
> You can also group them together and nest them.
One caveat here -- I don't believe you can (should) nest a inside a
, or for that matter, nest any block-level element inside an inline
element.
Jeffrey
--
http://mail.python.org/mai
Paul Rubin wrote:
> I don't know that the browser necessarily renders that faster than it
> renders a table, but there's surely less crap in the HTML, which is
> always good. I may start using that method.
Using tables for layout is also a cardinal faux pas if you care about
accessibility, as su
Juliano Freitas wrote:
> how can i get just the directories in other directorie without a files
> using the os module in Python??
You can test using os.path.isdir, for example:
>>> import os
>>> [x for x in os.listdir('.') if os.path.isdir(x)]
Jeffrey
--
http://mail.python.org/ma
I am having difficulty getting mod_python and xml.sax to play nicely with
each other. I am using:
Python 2.4
Mod_python 2.7.10
Apache 1.3.33
Using the mod_python.publisher handler to invoke the go function in the
following script:
from xml.sax import make_parser
def go():
x = make_parser()
Fredrik Lundh wrote:
> iirc, both apache and python uses the expat parser; if you don't make sure
> that both use the same expat version, you may get into trouble.
Thank you very much Fredrik, this does seem to be the problem I was having.
> this
> poster claims to have a fix:
>
> http://www.m
Dylan Wilson wrote:
> Now i need to compond that string remove the whitespace if you will.Well
> i read up on strip(), lstrip() and rstrip() and all i could deduce was
> that they striped the whitespace from the start and/or end of the
> string.But I tried that anyway and failed.Is there an easier
Consider the following class:
class Node(object):
def __init__(self, name, parent=None):
self.name = name
self.parent = parent
def _ancestors(self, ants=None):
if ants is None:
ants = []
else:
ants.insert(0, self.name)
if sel
Peter Otten wrote:
>> something like this didn't work for me:
> But this will, I suppose:
>
> @property
> def ancestors(self):
> if self.parent:
> return self.parent.ancestors + [self.parent]
> return []
>
> A non-recursive variant:
>
> @property
> def ancestors(self):
> r
J. W. McCall wrote:
> For example, given the string:
>
> 'spam "the life of brian" 42'
>
> I'd want it to return:
>
> ['spam', 'the life of brian', '42']
The .split() method of strings can take a substring, such as a quotation
mark, as a delimiter. So a simple solution is:
>>> x = 'spam "the
Bengt Richter wrote:
> Oops, note some spaces inside quotes near ss and missing double quotes in
> result.
And here I thought the main problem with my answer was that it didn't split
unquoted segments into separate words at all! Clearly I missed the
generalization being sought, and a more robust
walterbyrd wrote:
> Researching further, it looks to me like mod_python may only work well
> on apache 2.X.
mod_python works splendidly with Apache 2.0.x as well as Apache 1.3.x. There
is a different mod_python version for each Apache branch. The version for
Apache 2.0.x has newer features, but t
A.M wrote:
> I am asking this because I learned that DB-API in Python doesn't offer
> access to cursor columns by name. The only option is access by index. I
> hope that I've got it wrong!
While it's not part of the DB-API as far as I know, the MySQLdb package (and
perhaps other DB access modules
John Nagle wrote:
> What's the appropriate Python function to call to unescape a URL which
> might contain things like that?
xml.sax.saxutils.unescape()
> Will this interfere with the usual "%"
> type escapes in URLs?
Nope, and urllib.unquote() can be used to translate URL escapes manually.
Dave Dean wrote:
> I'm looking for a way to iterate through a list, two (or more) items at a
> time.
Here's a solution, from the iterools documentation. It may not be the /most/
beautiful, but it is short, and scales well for larger groupings:
>>> from itertools import izip
>>> def groupn(itera
Hello All,
I have two python versions installed, one in /usr/bin, and one in
/usr/local/bin. However, when invoking python without a full path,
I get the wrong executable with the right sys.executable string!
[EMAIL PROTE
Jim Langston wrote:
> I think it's because your python directory is in the path before your
> python2.5 directory.
Thanks for the tip. In fact, /usr/local/bin/python (2.5) is on my PATH
before /usr/bin/python (2.3).
I did find the problem however -- it turns out that caching the executable
path
walterbyrd wrote:
> The point is: PHP framework makers are very considerate of the
> realities of shared hosting.
I think the opposite is true: PHP applications typically ignore the
realities of shared hosting in order to be considerate to non-developers
(that is to say, "users"). In particular,
Papalagi Pakeha wrote:
> I guess I could do it with a little help of os.path.realpath() for all
> those cases where absolute or relative path was used. But how should I
> approach it when it's invoked as plain 'blah.py' because its directory
> name is in $PATH?
Use the value of __file__ rather t
Chris Mellon wrote:
> Doctest is commonly given as the alternative to people who feel this
> way. Personally, I find that anything worth testing is worth having a
> test directory and independent unit tests for.
I like keeping my tests separate as well, and doctest does allow this, using
doctest.
stef wrote:
>> And one note more. Just to be more pythonic you shouldn't use form
>> range(len(blabla)). Instead use:
>>
>> for i in list:
>> blabla...
>>
>>
> I would love that,
> but please tell me how (I need an integer counter for something else too):
for index, item in enumerate(args):
Mizipzor wrote:
> class Stats:
> def __init__(self, *li):
> self.speed = li[0]
> self.maxHp = li[1]
> (...)
>
> Or maybe there is an even niftier way that lets me iterate through
> them?
Using keyword arguments instead of positional parameters makes this easy:
>>> class
Mizipzor wrote:
> I discovered that Google has a free newsserver, so I
> joined this group from there. Sadly, I cant see a feature here that
> lets me subscribe to an individual topic, so if anyone else is using
> Google groups and know how to do something like this, please tell
> me.
I don't kno
Hrvoje Niksic wrote:
> Note that both machines are x86_64. Please try your test on a 32-bit
> machine and report the results. I suspect performance won't degrade
> there.
This theory seems to be supported by my findings. Running the test on a
32-bit machine took 45 seconds, while the same test
Steven D'Aprano wrote:
> Can you try it running in 64-bit mode?
Here are my results using the following test.py:
$ cat test.py
#!/usr/bin/python
import time
print "Starting: %s" % time.ctime()
v = {}
for line in open('keys.txt'):
v[long(line.strip())] = True
print "Finished: %s" % time.ctime(
Graham Dumpleton wrote:
> The other question is whether there is even a demand for this. Do
> people want to be able to take unmodified Python CGI scripts and try
> to run them persistently in this way, or would they be better off
> converting them to proper WSGI applications.
I would personally
Jeffrey Froman wrote:
> While recently
> considering whether to re-write a standalone mod_python application as CGI
> or WSGI, I was scared off by this paragraph from PEP333:
As a followup, I did go ahead and convert my CGI handler to WSGI, and doing
so was not difficult at all. The s
Bob wrote:
> Here's the code that did not work:
>
> import _mysql_exceptions
> from _mysql_exceptions import OperationalError
>
> try:
> database_code()
> except (_mysql_exceptions.OperationalError, OperationalError), e:
> error_handling()
Both of the above forms work fine here, as does using
M
robert wrote:
> thanks. Yet this does not work "naturally" consistent in my line
> processing algorithm - the further buffering. Compare e.g.
> ss.split('\n') ..
>
> >>> 'owi\nweoifj\nfheu\n'.split('\n')
> ['owi', 'weoifj', 'fheu', '']
> >>> 'owi\nweoifj\nfheu\nxx'.split('\n')
> ['owi', 'weoifj'
Ken Pu wrote:
> So the list comprehension actually creates a variable x which is
> somewhat unexpected.
> Is there a way for me keep the iterating variable in list
> comprehension local to the list comprehension?
Not with a list comprehension, but generator expressions do not leak their
iterating
Carl Banks wrote:
> there is a
> rationale behind the name "else". If you consider a for loop to be a
> rolled-up if...elif...else statement
This is an interesting angle. I've always considered "for/else" to be
unintuitive, not because of "else", but because of the coupling with "for".
Instead,
[EMAIL PROTECTED] wrote:
> I need
> something to parse user input for a django app, and it's awesome to be
> able to write "last monday", "a year ago", or "10pm tuesday" like
> PHP's strtotime.
Django comes with some pretty handy filters for doing this sort of
formatting. Check out the "date", "n
Laszlo Nagy wrote:
> I know that "=?UTF-8?B" means UTF-8 + base64 encoding, but I wonder if
> there is a standard method in the "email" package to decode these
> subjects?
The standard library function email.Header.decode_header will parse these
headers into an encoded bytestring paired with the
Giampaolo Rodola' wrote:
> I mainly need to temporarily impersonate another user to
> execute a command and then come back to the original user.
If the script is run as root, you can freely impersonate other users with
the os.seteuid() and os.setegid() methods.
If the script is not run as root (
Pedro Machado Santa wrote:
> import testpackage
>
> class testClass():
> #...
>
> testpackage.testClass = testClass
This method should work fine. Modules are effectively singletons, so running
this code one time anywhere in your application will cause the changes to
appear in all references t
pythonnubie wrote:
> The exeption
> is " no such attribute " in module random
Is your own source file named "random.py" by chance? If so, rename it, and
be sure to remove the leftover random.pyc file as well.
Jeffrey
--
http://mail.python.org/mailman/listinfo/python-list
skunkwerk wrote:
> p = subprocess.Popen(['rename','-vn','s/(.*)\.htm$/
> model.html/','*.htm'],stdout=subprocess.PIPE,stderr=subprocess.PIPE)
> print p.communicate()[0]
>
> i change to print p.communicate()[1] in case the output is blank the
> first time
>
> this is the output:
> *.htm renamed a
Skip Montanaro wrote:
> I am trying to replace os.system calls with subprocess.Popen. This simple
> example fails miserably:
>
proc = subprocess.Popen ("ls /tmp")
Popen expects a list of program arguments. When passed a single string
instead of a list, as in your example, it assumes that t
Fabio Durieux Lopes wrote:
> def signalHandler(signum, frame):
> terminate = True
This creates a new variable named "terminate" inside the signalHandler
function's local scope. To adjust the value of a module-level global from
inside a function, use the "global" keyword:
def signalHandl
notbob wrote:
> I
> persevere because it's more fun/challenging than video games
This is the crux of the matter from where I'm sitting. If the purpose of
learning a programming language is fun, then the primary relevant question
is:
Is it more fun to code in Python or PHP?
The answer i
jeremie fouche wrote:
> You can also use :
> self.SomeField = params.has_key("mykey") and params["mykey"] or None
Have caution with this solution: it may not provide the desired result in
the case where params["mykey"] is a false value, such as 0, or []
Jeffrey
--
http://mail.python.org/mailman
Michael Ströder wrote:
> Please tell me
> which Python version you're using
We do have one venerable machine here at work using python2.2 with
python-ldap2.0.0pre04. As you can see, we haven't bothered to update either
in quite a while ;-)
> and why it'd be important for you to
> have python-ld
John Salerno wrote:
> Generally speaking, what tools would I use to do this? Is there a built-in
> module for it?
I've had a very nice experience using the 3rd-party package "paramiko" for
ssh communication. There's nothing in the standard library that I know of.
> I looked at the telnetlib modu
John Salerno wrote:
> I guess a blanket process might be a tad risky, but don't you want all CGI
> files to be executable by all?
Typically, I prefer CGI scripts to be executable only the owner. If the web
server runs those scripts as a different user, then that user must also be
permitted to exe
Daniel Fetchinson wrote:
> Is there a way of making python execute the above whenever it starts
> up so that I don't have to type it all the time?
Create a script containing these statements, and specify its location with
the PYTHONSTARTUP environment variable. Your script will run whenever
pytho
Tim Mitchell wrote:
> One of my project managers questions is: "Are we the only company in the
> world with this kind and size of project?"
I can't provide a bigger success story personally (my largest project is
currently about 15k lines of code, eminently manageable by one person.) But
Google c
Diez B. Roggisch wrote:
>> Is it possible the module was installed with priviledges set too
>> strict? Perhaps the interpreter cannot see the module when it is run
>> from a normal user account.
>
> Possible - certainly. Yet unrealistic, because usually root access is
> required to system-wide i
Laurent Rahuel wrote that antar2 wrote:
>> following text for example should be considered as a list of lists (3
>> columns and 3 rows), so that when I make the print statement list[0]
>> [0], that the word pear appears
>>
>>
>> pear noun singular
>> books nouns plural
>> table noun singular
Fi
Tim Roberts wrote:
> Everything has a boolean value in
> Python. 0, None, False, '' (empty string), [] (empty list), () (empty
> tuple), and {} (empty dictionary) all have a False value. Everything else
> has a True value.
Empty set objects also evaluate as false in a boolean context.
Jeffrey
Victor Noagbodji wrote:
> Why do people use if name is not None: instead of simply
> writing if not name?
To differentiate from the case where name == '', or some other non-None
false value. So the question is, do you want to test for identity with
None, or for truth in general?
Jeffrey
--
http
writeson wrote:
> I'm running a CentOS 4 server and have installed Python2.5 on there
> (it's our development machine) in preparation of moving to Python2.5
> everywhere. All looks good with our code and 2.5, except where it
> comes to MySQLdb, I can't get that to install on the machine. It
> gene
[EMAIL PROTECTED] wrote:
> so this is what my option files look like:
>
> 1opt.txt
> { '-cc': '12',
> '-I': r'/my/path/work/'}
You can turn these strings read from text files into actual dictionaries
using eval:
>>> d = eval("{ '-cc': '12', '-I': r'/my/path/work/'}")
>>> d
{'-I': '/my/path/work
Malcolm Greene wrote:
> I'm looking for tips on how to load balance running multiple Python
> applications in multi-CPU environments. My understanding is that Python
> applications and their threads are limited to a specific CPU.
>
> Background: I have a Python utility that processes email messag
Steven Clark wrote:
> If I have a list of items of mixed type, can I put something into it
> such that after a list.sort(), is guaranteed to be at the end of the
> list?
> It looks like "None" always ends up at the start ("lightest"), but I
> want the opposite ("heaviest").
I don't know of an
Torsten Bronger wrote:
> I know that cyclic imports work in Python under certain
> circumstances. Can anyone refer me to a page which explains when
> this works?
I don't know of a specific URL offhand.
Cyclic imports are not a problem by themselves, but cyclic definitions are.
Thus:
#
Shane Lillie wrote:
> goats = [ x for x in range(2) if doors[x] == 'G' ]
>
> but for some reason the list comprehension is not always returning a
> list with 2 elements in it (sometimes it will be just 1 element).
The problem here is with your usage of the range() function. You provide an
endpoi
[EMAIL PROTECTED] wrote:
> In Python, is it possible to add classes to a module at run-time?
>
> Say I have a module foo and a module bar. Foo has class A and B, and
> bar has class C. I want to add class C to foo so I can access it as
> foo.C, but i want to do it without modifying foo's source.
Tim Chase wrote:
>def nsplit(s, delim=None, maxsplit=None):
> if maxsplit:
>results = s.split(delim, maxsplit)
>result_len = len(results)
>if result_len < maxsplit:
> results.extend([''] * (maxsplit - result_len)
>return results
> else:
>
Erich wrote:
> def iterable(item, count_str=False):
> if not count_str and isinstance(item, str):
> return False
> try:
> iter(item)
> except:
> return False
> return True
Beware the "except" clause here, as it catches *all* errors. Thus, if you
happen to ha
notbob wrote:
> I'm running
> vers 2.5.1 on slackware 12.
Nice to see another Slackware user around here!
> "Here is an example of a user-defined function that has a parameter:
>
>
> def print_twice(bruce):
> print bruce, bruce
> is this just an example of how the def should be written a
notbob wrote:
> Do python scripts require the:
>
> #!/usr/bin/env python
An appropriate shebang is required if you intend to use the module itself as
a script, from the command line, like:
$ ./my_module.py argument argument ...
It is not required merely to import the module into a python
EdWhyatt wrote:
> I would like to have the ability to send a mail
> message with no-one email address in the To field.
The to_addrs parameter is for the SMTP "RCPT TO", which must contain at
least one address. It has nothing to do with the To: header of the email.
You can *also* add the recipien
EdWhyatt wrote:
> But are you serious about that RFC Compliant thing?
RFC 2822 obsoletes RFC 822, and I don't know of any specification in RFC
2822 that requires an email address to be present in the To: header. My
mail seems to generally work fine without a To: header.
I haven't memorized RFC 2
Grzegorz Smith wrote:
> Hi all. I'm trying get data from text field in MySQl 5.0 with my National
> characters. Data are stored in utf8 encodings. Here is the script:
> import MySQLdb, MySQLdb.cursors
> conn = MySQLdb.connect(host='localhost', user='root', passwd='123456',
> db='profile_locale')
>
Alex Martelli wrote:
> I've never seen an "object-relational mapping" (technical
> term for cruft that tries to avoid people having to learn and use SQL)
> which doesn't drive me into a murderous, foam-at-mouth rage in a very
> short time -- I WANT my SQL, I LOVE SQL, it's WAY more powerful
> and
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