Installing Python packages to user directory on macOS, fixing pypa#122

cibuildwheel/macos.py

@@ -84,11 +84,12 @@ def call(args, env=None, cwd=None, shell=False):
  call(['python', '--version'], env=env)
 
  # install pip & wheel
+ # use '--user', because the removal of the old version of setuptools might cause problems with newer pip versions (see issue #122)
  call(['python', get_pip_script, '--no-setuptools', '--no-wheel'], env=env)
  call(['pip', '--version'], env=env)
- call(['pip', 'install', '--upgrade', 'setuptools'], env=env)
- call(['pip', 'install', 'wheel'], env=env)
- call(['pip', 'install', 'delocate'], env=env)
+ call(['pip', 'install', '--user', '--upgrade', 'setuptools'], env=env)
+ call(['pip', 'install', '--user', 'wheel'], env=env)
+ call(['pip', 'install', '--user', 'delocate'], env=env)
 
  # setup dirs
  if os.path.exists('/tmp/built_wheel'):
@@ -118,11 +119,11 @@ def call(args, env=None, cwd=None, shell=False):
  delocated_wheel = glob('/tmp/delocated_wheel/*.whl')[0]
 
  # install the wheel
- call(['pip', 'install', delocated_wheel], env=env)
+ call(['pip', 'install', '--user', delocated_wheel], env=env)
 
  # test the wheel
  if test_requires:
- call(['pip', 'install'] + test_requires, env=env)
+ call(['pip', 'install', '--user'] + test_requires, env=env)
  if test_command:
  # run the tests from $HOME, with an absolute path in the command
  # (this ensures that Python runs the tests against the installed wheel