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My project mix pure Python code, and Cython extensions for optimization and for linking with C libraries. I have one source tree for my Python project, and one for Cython and C code. My Cython extensions each have a setup.py file to build them. Actually, for each extension, I do the following:

python setup.py build_ext --inplace
mv myext.so ../some/specific/place/

Is there a way to specify to distutils where to install my extension (if possible, using a relative path), instead of using --inplace followed by mv? Using --prefix option isn't good, since it creates a hierarchy of folders I don't need.

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  • Could you put the content of your setup.py ? Commented Jun 16, 2011 at 9:45

2 Answers 2

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I finally found the answer! The option is -b (or --build_lib)

python setup.py build_ext -b ../some/specific/place/
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Thanks - just to note it's --build-lib rather than --build_lib
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Maybe you could use the alternate installation functionnality of distutils which will allow you to remove the useless hierarchy folders.

Try something like this :

python setup.py install --home=../some/specific/place \
                        --install-purelib=. \
                        --install-platlib=.
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Doing so install my extension in current directory, like with --inplace.

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