[mod_python] Getting mod_python version

Regardless of whether or not __version__ is implemented, using exception 
handling is more robust in the long run, I think.

Forgetting to change the interface version number when a compatibility 
detail has changed is not an unknown phenomenon -- if not with 
mod_python, then certainly with other SDKs.

--Michael

Michael C. Neel wrote:

> Most modules have a __version__ member, and the help() built-in method
> even looks for this variable and uses it to display the version of the
> file:
> 
> 
>>>>import cgi
>>>>cgi.__version__
> 
> '2.6'
> 
>>>>help(cgi)
> 
> ...skipping...
> DATA
>     __all__ = ['MiniFieldStorage', 'FieldStorage', 'FormContentDict',
> 'SvF...
>     __version__ = '2.6'
>     logfile = ''
>     logfp = None
>     maxlen = 0
> 
> VERSION
>     2.6
> 
> 
> 
> I have not read or seen anything saying the "pythonic" way of versioning
> a module is by try/except blocks testing to see if variable exist.  I
> have however seen this from PEP 8:
> 
> Version Bookkeeping
> 
>     If you have to have RCS or CVS crud in your source file, do it as
>     follows.
> 
>         __version__ = "$Revision: 1.20 $"
>         # $Source: /cvsroot/python/python/nondist/peps/pep-0008.txt,v $
> 
>     These lines should be included after the module's docstring,
>     before any other code, separated by a blank line above and
>     below.
> 
> Which implies to me that __version__ is a pythonic way of versioning a
> module/code file, though it doesn't seem to be as standard as __doc__.
> 
> Mike
> 
> 
>>-----Original Message-----
>>From: Gustavo Córdova Avila [mailto:gustavo.cordova at q-voz.com] 
>>Sent: Tuesday, December 02, 2003 1:47 PM
>>To: Michael C. Neel
>>Cc: mod_python at modpython.org
>>Subject: Re: [mod_python] Getting mod_python version
>>
>>
>>This is the correct, "pythonic" way of doing things.
>>
>>I'd recommend using "except AttributeError:" instead of a naked 
>>"except:" btw.
>>
>>-gustavo
>>
>>Michael C. Neel wrote:
>>
>>
>>>Hi all,
>>>
>>>	I don't know if it's not there, or I'm just overlooking it, but
>>>I can seem for a way in code to get the version of 
>>
>>mod_python.  I have
>>
>>>some "default" modules I use, and I am trying to make them 
>>
>>work with any
>>
>>>mod_python version.  Right now I'm doing try block, like such:
>>>
>>>   # Get username/password from client
>>>   pw = req.get_basic_auth_pw()
>>>   try:
>>>       # mod_python 2.x
>>>       user = req.connection.user
>>>   except:
>>>       # mod_python 3.x
>>>       user = req.user
>>>
>>>	...but I'd rather be able to get the version directly.
>>>
>>>Mike
>>>
>>>_______________________________________________
>>>Mod_python mailing list
>>>Mod_python at modpython.org
>>>http://mailman.modpython.org/mailman/listinfo/mod_python
>>>
>>>
>>> 
>>>
>>
>>
> 
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