Installation failure for scipy 1.7.0 on aarch64

Installation of scikit-learn version 0.23.2 breaks on aarch64 architecture machine with the new release of scipy 1.7.0 when manually built from source.

sudo python3 -m pip install scikit-learn==0.23.2;

I get the following error:

  Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/mnt/tmp/pip-build-50goywb6/scipy/setup.py", line 629, in <module>
        setup_package()
      File "/mnt/tmp/pip-build-50goywb6/scipy/setup.py", line 625, in setup_package
        setup(**metadata)
      File "/usr/local/lib64/python3.7/site-packages/numpy/distutils/core.py", line 137, in setup
        config = configuration()
      File "/mnt/tmp/pip-build-50goywb6/scipy/setup.py", line 536, in configuration
        config.add_subpackage('scipy')
      File "/usr/local/lib64/python3.7/site-packages/numpy/distutils/misc_util.py", line 1036, in add_subpackage
        caller_level = 2)
      File "/usr/local/lib64/python3.7/site-packages/numpy/distutils/misc_util.py", line 1005, in get_subpackage
        caller_level = caller_level + 1)
      File "/usr/local/lib64/python3.7/site-packages/numpy/distutils/misc_util.py", line 942, in _get_configuration_from_setup_py
        config = setup_module.configuration(*args)
      File "scipy/setup.py", line 12, in configuration
        config.add_subpackage('interpolate')
      File "/usr/local/lib64/python3.7/site-packages/numpy/distutils/misc_util.py", line 1036, in add_subpackage
        caller_level = 2)
      File "/usr/local/lib64/python3.7/site-packages/numpy/distutils/misc_util.py", line 1005, in get_subpackage
        caller_level = caller_level + 1)
      File "/usr/local/lib64/python3.7/site-packages/numpy/distutils/misc_util.py", line 942, in _get_configuration_from_setup_py
        config = setup_module.configuration(*args)
      File "scipy/interpolate/setup.py", line 58, in configuration
        from pythran.dist import PythranExtension
    ModuleNotFoundError: No module named 'pythran

However, if I install earlier version of scipy, scikit-learn installs without any issuses as given below:

sudo python3 -m pip install scipy==1.6.3

Is is possible to pin down the scipy version to earlier releases for this scikit-learn version?

[rth]

That was also my guess hence the request for version above. That’s for the confirmation @Busteren !

[pandeyp]

After updating pip, the installation is working fine.