[Pythonmac-SIG] Error with modulegraph when using python script without knowed python extensions

[Olivier Hervieu]

Hi all.

I've got a python module who looks like this :

MY_PYTHON_MODULE:
  |_ setup.py
  |_ PYTHON_SOURCE/
      |_lots_of.py
  |_ PYTHON_SCRIPTS/
      |_MyScript


with setuptools a "python setup.py install" install the PYTHON_SOURCE in 
site-package of my python installation, and PYTHON_SCRIPTS are installed 
in the "install_prefix/bin".

So MyScript is already in the path, and is saw, by the user, as a 
"binary". There's a lots of python programs installed like this (like 
"spe", the python editor) on Linux.

I want now to have a Mac Port of my program. So i try py2app!

My application is, indeed, "MyScript"

But, when i run "python setup.py py2app", i have the following error 
from the find_modules.py of modulegraph tool:

line 86, in parse_mf_results
>>     raise TypeError("Don't know how to handle '%s'" % repr(src))


After a look in find_modules.py, i see that a PY_SUFFIXES list is used 
to determine which is python code and wich is not... And unfortunately, 
with a python script with no extension, it raise the previous error.

I think that, for files without extension, a detection based on 
mimetypes will be helpfull...

so, in find_modules.py, by adding


type, encoding =mimetypes.guess_type(__MY_FILE__)
if encoding == 'text/x-python':
    py_files.append(item)

will fix this problem. What did you think about that?

I have contacted the developer of modulegraph before.. but it seems that 
the support of this module is provide by people on this mailing list.



Regards,

Olivier.