解決CentOS7 aarch64 python2.7報錯NameError: name 'platform_system' is not defined

Traceback (most recent call last):
  File "/usr/bin/fab", line 5, in <module>
    from pkg_resources import load_entry_point
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 3007, in <module>
    working_set.require(__requires__)
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 728, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 631, in resolve
    requirements.extend(dist.requires(req.extras)[::-1])
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2489, in requires
    dm = self._dep_map
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2700, in _dep_map
    self.__dep_map = self._compute_dependencies()
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2733, in _compute_dependencies
    common = frozenset(reqs_for_extra(None))
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2730, in reqs_for_extra
    if req.marker_fn(override={'extra':extra}):
  File "/usr/lib/python2.7/site-packages/_markerlib/markers.py", line 113, in marker_fn
    return eval(compiled_marker, environment)
  File "<environment marker>", line 1, in <module>
NameError: name 'platform_system' is not defined

解決方案

pip install --upgrade setuptools