Pip install error

[kevinjohncutler]

Installing with pip gives me this error on import:

RuntimeError: module compiled against API version 0x10 but this version of numpy is 0xf
Could not import submodules (exact error was: numpy.core.multiarray failed to import).

There are many reasons for this error the most common one is that you have
either not built the packages or have built (using `python setup.py build`) or
installed them (using `python setup.py install`) and then proceeded to test
mahotas **without changing the current directory**.

Installing though conda does not raise this error. This is the same issue as #113, but apparently for numpy version 0x10 (1.23) and 0x0f (1.22). The release notes say mahotas 1.4.13 should work for 1.22, which is my version (only for compatibility with numba). As expected, there is no error if I instead use mahotas 1.4.12.

[luispedro]

My guess is that pip install uses wheels which are actually dependent on the version that was used to build and this is leading to this incompatibility.

Maybe pip install --no-binary mahotas would work

[kevinjohncutler]

Ah, so pip install mahotas --no-binary :all: will do it (without the :all I get an error). Another way that works is pip install git+https://github.com/luispedro/mahotas.git. Thanks!

[Czaki]

If someone finds this problem, it looks like an outdated NumPy version in the author environment.