py27-mpi4py @3.1.4: distutils.errors.DistutilsError: Could not find suitable distribution for Requirement.parse('3to2')

[ryandesign (Ryan Carsten Schmidt)]

​https://build.macports.org/builders/ports-12_arm64-builder/builds/104473/steps/install-port/logs/stdio

WARNING: The pip package is not available, falling back to EasyInstall for handling setup_requires/test_requires; this is deprecated and will be removed in a future version.
Not found: ''
Not found: ''/3to2/
Not found: ''/3to2/
Couldn't find index page for '3to2' (maybe misspelled?)
Not found: ''/
No local packages or working download links found for 3to2
Traceback (most recent call last):
  File "setup.py", line 642, in <module>
    main()
  File "setup.py", line 639, in main
    run_setup()
  File "setup.py", line 512, in run_setup
    **setup_args
  File "/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_python_py-mpi4py/py27-mpi4py/work/3.1.4/conf/mpidistutils.py", line 508, in setup
    return fcn_setup(**attrs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/setuptools/__init__.py", line 161, in setup
    _install_setup_requires(attrs)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/setuptools/__init__.py", line 156, in _install_setup_requires
    dist.fetch_build_eggs(dist.setup_requires)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/setuptools/dist.py", line 721, in fetch_build_eggs
    replace_conflicting=True,
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources/__init__.py", line 782, in resolve
    replace_conflicting=replace_conflicting
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources/__init__.py", line 1065, in best_match
    return self.obtain(req, installer)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources/__init__.py", line 1077, in obtain
    return installer(requirement)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/setuptools/dist.py", line 777, in fetch_build_egg
    return fetch_build_egg(self, req)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/setuptools/installer.py", line 70, in fetch_build_egg
    return _legacy_fetch_build_egg(dist, req)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/setuptools/installer.py", line 53, in _legacy_fetch_build_egg
    return cmd.easy_install(req)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 679, in easy_install
    raise DistutilsError(msg)
distutils.errors.DistutilsError: Could not find suitable distribution for Requirement.parse('3to2')
Command failed:  cd "/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_python_py-mpi4py/py27-mpi4py/work/3.1.4" && /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7 setup.py --no-user-cfg build 
Exit code: 1