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Consider adding force_rebuild argument to pyximport.install() #3121

realead opened this issue Sep 2, 2019 · 0 comments


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commented Sep 2, 2019

It is quite convenient to use pyximport.install() for adding tests of Cython's cdef-functionality to the usual testing-infrastructure.

However, the pyx-modules aren't rebuild when only dependencies are changed but not the main-pyx-file.

There are remedies, but none of them as simple/clear as an explicit force_rebuild-argument would be. For example:
- using pyxdep-files which have the tendency not to get updated
- pyximport.install(setup_args = {"script_args" : ["--force"]}) (not directly clear it can be achieved this way)
- deleting the cache (needs some tinkering with testing infrastructure)
- using tempfile.TemporaryDirectory() for build_dir -argument

There is already force_rebuild-argument in pyxbuild.pyx_to_dll.

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