I'm using Cython to generate a shared object out of Python module. The compilation output is written to build/lib.linux-x86_64-3.5/<Package>/<module>.cpython-35m-x86_64-linux-gnu.so. Is there any option to change the naming rule? I want the file to be named <module>.so without the interpreter version or arch appendix.
Seems like setuptools provides no option to change or get rid of the suffix completely. The magic happens in distutils/command/build_ext.py:
def get_ext_filename(self, ext_name):
from distutils.sysconfig import get_config_var
ext_path = ext_name.split('.')
ext_suffix = get_config_var('EXT_SUFFIX')
return os.path.join(*ext_path) + ext_suffix
Seems like I will need to add a post-build renaming action.
Update from 08/12/2016:
Ok, I forgot to actually post the solution. Actually, I implemented a renaming action by overloading the built-in install_lib command. Here's the logic:
from distutils.command.install_lib import install_lib as _install_lib
def batch_rename(src, dst, src_dir_fd=None, dst_dir_fd=None):
'''Same as os.rename, but returns the renaming result.'''
os.rename(src, dst,
src_dir_fd=src_dir_fd,
dst_dir_fd=dst_dir_fd)
return dst
class _CommandInstallCythonized(_install_lib):
def __init__(self, *args, **kwargs):
_install_lib.__init__(self, *args, **kwargs)
def install(self):
# let the distutils' install_lib do the hard work
outfiles = _install_lib.install(self)
# batch rename the outfiles:
# for each file, match string between
# second last and last dot and trim it
matcher = re.compile('\.([^.]+)\.so$')
return [batch_rename(file, re.sub(matcher, '.so', file))
for file in outfiles]
Now all you have to do is to overload the command in the setup function:
setup(
...
cmdclass={
'install_lib': _CommandInstallCythonized,
},
...
)
Still, I'm not happy with overloading standard commands; if you find a better solution, post it and I will accept your answer.