ERROR: Could not build wheels for scipy which use PEP 517 and cannot be installed directly

Question

I'm trying to install scipy via pip on my 64 bit ARMV8 board. I have already installed openblas which is required by scipy. So, no issues with that. When i gave pip3 install scipy --trusted-host pypi.org --trusted-host files.pythonhosted.org , I got the error Failed building wheel for scipy . I have pip3 and pip3.5 in my /usr/bin and the rest of the pip is in /usr/lib64/python3.5/site-packages.So basically, I also have pip.

I also tried to install scipy with --no-binary option, which was one of the answers on net. But, it gave me the same error. Below's the error that i got.

ERROR:

Collecting scipy   Downloading scipy-1.4.1.tar.gz (24.6 MB)      |################################| 24.6 MB 6.6 MB/s    Installing build dependencies ... done   Getting requirements to build wheel ... done     Preparing wheel metadata ... done Building wheels for collected packages: scipy   Building wheel for scipy (PEP 517) ... error   ERROR: Command errored out with exit status 1:    command: /usr/bin/python3 /usr/lib64/python3.5/site-packages/pip-20.0.2-py3.5.egg/pip/_vendor/pep517/_in_process.py build_wheel /tmp/tmpkklsvv4v        cwd: /tmp/pip-install-9v4nmof7/scipy   Complete output (50 lines):   /usr/bin/python3: No module named pip   Traceback (most recent call last):     File "/usr/lib64/python3.5/site-packages/setuptools/installer.py", line 128, in fetch_build_egg       subprocess.check_call(cmd)     File "/usr/lib64/python3.5/subprocess.py", line 271, in check_call       raise CalledProcessError(retcode, cmd)   subprocess.CalledProcessError: Command '['/usr/bin/python3', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', '/tmp/tmpp7fvgp36', '--quiet', 'numpy>=1.13.3']' returned non-zero exit status 1    During handling of the above exception, another exception occurred:    Traceback (most recent call last):     File "/usr/lib64/python3.5/site-packages/pip-20.0.2-py3.5.egg/pip/_vendor/pep517/_in_process.py", line 257, in <module>       main()     File "/usr/lib64/python3.5/site-packages/pip-20.0.2-py3.5.egg/pip/_vendor/pep517/_in_process.py", line 240, in main       json_out['return_val'] = hook(**hook_input['kwargs'])     File "/usr/lib64/python3.5/site-packages/pip-20.0.2-py3.5.egg/pip/_vendor/pep517/_in_process.py", line 182, in build_wheel       metadata_directory)     File "/usr/lib64/python3.5/site-packages/setuptools/build_meta.py", line 213, in build_wheel       wheel_directory, config_settings)     File "/usr/lib64/python3.5/site-packages/setuptools/build_meta.py", line 198, in _build_with_temp_dir       self.run_setup()     File "/usr/lib64/python3.5/site-packages/setuptools/build_meta.py", line 250, in run_setup       self).run_setup(setup_script=setup_script)     File "/usr/lib64/python3.5/site-packages/setuptools/build_meta.py", line 143, in run_setup       exec(compile(code, __file__, 'exec'), locals())     File "setup.py", line 540, in <module>       setup_package()     File "setup.py", line 536, in setup_package       setup(**metadata)     File "/usr/lib64/python3.5/site-packages/numpy/distutils/core.py", line 126, in setup       dist = setup(**new_attr)     File "/usr/lib64/python3.5/site-packages/numpy/distutils/core.py", line 169, in setup       return old_setup(**new_attr)     File "/usr/lib64/python3.5/site-packages/setuptools/__init__.py", line 143, in setup       _install_setup_requires(attrs)     File "/usr/lib64/python3.5/site-packages/setuptools/__init__.py", line 138, in _install_setup_requires       dist.fetch_build_eggs(dist.setup_requires)     File "/usr/lib64/python3.5/site-packages/setuptools/dist.py", line 698, in fetch_build_eggs       replace_conflicting=True,     File "/usr/lib64/python3.5/site-packages/pkg_resources/__init__.py", line 783, in resolve       replace_conflicting=replace_conflicting     File "/usr/lib64/python3.5/site-packages/pkg_resources/__init__.py", line 1066, in best_match       return self.obtain(req, installer)     File "/usr/lib64/python3.5/site-packages/pkg_resources/__init__.py", line 1078, in obtain       return installer(requirement)     File "/usr/lib64/python3.5/site-packages/setuptools/dist.py", line 754, in fetch_build_egg       return fetch_build_egg(self, req)     File "/usr/lib64/python3.5/site-packages/setuptools/installer.py", line 130, in fetch_build_egg       raise DistutilsError(str(e))   distutils.errors.DistutilsError: Command '['/usr/bin/python3', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', '/tmp/tmpp7fvgp36', '--quiet', 'numpy>=1.13.3']' returned non-zero exit status 1   ----------------------------------------   ERROR: Failed building wheel for scipy Failed to build scipy ERROR: Could not build wheels for scipy which use PEP 517 and cannot be installed directly 

Answer 1

I had the same issue with opencv-python. What worked for me was updating pip as:

pip3 install --upgrade pip 

Note: I am using docker on Linux.