[PyPy-issue] [issue540] distutils byte_compile fails when installing suds

[Amaury Forgeot d Arc]

Amaury Forgeot d Arc <amauryfa at gmail.com> added the comment:

I did not try to reproduce the error, but here is a probable cause:

- in module/posix/app_posix.py, pypy implements os.fdopen by calling file.fdopen() (which 
does not exist in CPython, it's a pypy extension); this classmethod is implemented in 
module/_file/interp_file.py.
- in my copy of setuptools, setuptools/sandbox.py replaces __builtins__.file with a custom 
function (it restricts writes to a single directory)

setuptools seems to suppose that the only way to use __builtins__.file is to __call__ it, 
this may be the case with CPython, but pypy breaks the assumption with this classmethod.

A solution is to export fdopen as a function in the _file module, and use it in 
app_posix.py: "import _file; _file.fdopen(...)"

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