[Distutils] Distributing executable binaries in eggs

Pascoe, S (Stephen) S.Pascoe at rl.ac.uk
Wed Oct 18 16:55:00 CEST 2006

I am trying create eggs for a package that relies on a compiled
executable that is distributed with the package.  I can get the
executable into the egg fine.  It is declared as package_data and I set
zip_safe=False to force easy_install to unpack the egg.
My problem is that the executable is always extracted without execution
permissions (our platform is UNIX).  After some experimenting this
appears to be a general problem with the zip file module not honouring
execution permissions.  I know permissions can be set in zip files
because the InfoZip tools do it.
Currently I have a hack working that tries to change the permissions on
the executable when the package is imported but this won't work if the
egg is installed by a different user to the importer.
I am wondering if there is a way round this with setuptools.  Some sort
of hook to fix permissions when unpacking a non-zipsafe egg would be
Stephen Pascoe  01235 445980
British Atmospheric Data Centre
Rutherford Appleton Laboratory, CCLRC
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