[Pythoncard-users] Re: Problem with Mac and Python 2.4

[Alex T. <al...@tw...>]

I sent this to the pythoncard-devel list last night, but it still hasn't 
appeared, either in my mailbox or on the archive; meanwhile, mail sent 
at the same time has already appeared on the main users list, so I'm 
trying this message again, but on the main users list.

Alex Tweedly wrote:

>
> [ if you didn't see it, I posted a message on pythoncard-users with 
> some of the background ]
>
> Problem is in finding resource files for modules in sub-directories of 
> the application, and is specific to Mac and to Python2.4
>
> In model.py, we do
>
>> def childWindow(parent, frameClass, filename=None, rsrc=None):
>>     if filename is None:
>>         if rsrc is None:
>>             if util.main_is_frozen():
>>                 # KEA 2004-05-20
>>                 # running standalone
>>                 # need to support py2exe differently than 
>> bundlebuilder and mcmillan probably
>>                 # but this is the py2exe 0.5 way
>>                 # figure out the .rsrc.py filename based on the 
>> module name stored in library.zip
>>                 filename = 
>> os.path.split(sys.modules[frameClass.__module__].__file__)[1]
>>                 # KEA 2004-09-14
>>                 # it seems sort of dumb to duplicate this function
>>                 # just to handle the parent differently
>>                 # so I'm adding this check
>>                 if isinstance(parent, wx.Notebook):
>>                     parentFrame = parent.GetParent().GetParent()
>>                     filename = 
>> os.path.join(parentFrame.application.applicationDirectory, filename)
>>                 else:
>>                     filename = 
>> os.path.join(parent.application.applicationDirectory, filename)
>>             else:
>>                 # figure out the .rsrc.py filename based on the 
>> module name
>>                 filename = sys.modules[frameClass.__module__].__file__
>>             # chop the .pyc or .pyo from the end
>>             base, ext = os.path.splitext(filename)
>>             filename = internationalResourceName(base)
>>             rsrc = resource.ResourceFile(filename).getResource()
>
>
> in util.py, we do
>
>> # Thomas Heller's function for determining
>> # if a module is running standalone
>> def main_is_frozen():
>>     if sys.platform == 'darwin':
>>         # this is a temporary hack for bundlebuilder
>>         return not sys.executable == 
>> '/System/Library/Frameworks/Python.framework/Versions/2.3/Resources/Python.app/Contents/MacOS/Python' 
>>
>>     else:
>>         return (hasattr(sys, "frozen") or # new py2exe, McMillan
>>                 hasattr(sys, "importers") # old py2exe
>>                 or imp.is_frozen("__main__")) # tools/freeze, cx_freeze
>
>
> Clearly, the fact that we have that specific test using a Python 2.3 
> path is a problem. I have temporarily got around this (for my own Mac 
> system) by changing that line to
>
>        return not (sys.executable == 
> '/System/Library/Frameworks/Python.framework/Versions/2.3/Resources/Python.app/Contents/MacOS/Python' 
> or
> '/Library/Frameworks/Python.framework/Versions/2.4/Resources/Python.app/Contents/MacOS/Python') 
>
>
> Note I assumed that 2.4 would (sensibly) not be installed in the 
> System Library, but even so this won't work for 2.5, and could fail 
> for other installation possibilities. If anyone who understands this 
> better knows how this *should* be solved, please speak up. :-)
>
> Otherwise, I'll commit this band-aid for now - I think it (or better) 
> should be in 0.8.2, because I think there is more interest in Python 
> 2.4 for Mac (py2app requires 2.4 or greater, the Universal build is 
> out for 2.4, etc.)  Since I have this change to do, I'll also fix a 
> typo in the docs directory before re-doing the builds intended to be 
> the release of 0.8.2.
>


-- 
Alex Tweedly       http://www.tweedly.net



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