python pip3 install “ERROR: Command errored out with exit status 1“报错解决

• 报错信息

Preparing metadata (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: /usr/bin/python3 -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-7_wac8ap/pymediainfo_cfc099399612448aaa49a03a51d8d771/setup.py'"'"'; __file__='"'"'/tmp/pip-install-7_wac8ap/pymediainfo_cfc099399612448aaa49a03a51d8d771/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-1ox6i__0
       cwd: /tmp/pip-install-7_wac8ap/pymediainfo_cfc099399612448aaa49a03a51d8d771/
  Complete output (22 lines):
  Traceback (most recent call last):
    File "", line 1, in 
    File "/tmp/pip-install-7_wac8ap/pymediainfo_cfc099399612448aaa49a03a51d8d771/setup.py", line 70, in 
      "License :: OSI Approved :: MIT License",
    File "/usr/lib/python3.6/site-packages/setuptools/__init__.py", line 129, in setup
      return distutils.core.setup(**attrs)
    File "/usr/lib64/python3.6/distutils/core.py", line 108, in setup
      _setup_distribution = dist = klass(attrs)
    File "/usr/lib/python3.6/site-packages/setuptools/dist.py", line 370, in __init__
      k: v for k, v in attrs.items()
    File "/usr/lib64/python3.6/distutils/dist.py", line 281, in __init__
      self.finalize_options()
    File "/usr/lib/python3.6/site-packages/setuptools/dist.py", line 529, in finalize_options
      ep.load()(self, ep.name, value)
    File "/usr/lib/python3.6/site-packages/pkg_resources/__init__.py", line 2318, in load
      return self.resolve()
    File "/usr/lib/python3.6/site-packages/pkg_resources/__init__.py", line 2324, in resolve
      module = __import__(self.module_name, fromlist=['__name__'], level=0)
    File "/tmp/pip-install-7_wac8ap/pymediainfo_cfc099399612448aaa49a03a51d8d771/.eggs/setuptools_scm-7.1.0-py3.6.egg/setuptools_scm/__init__.py", line 5
      from __future__ import annotations
      ^
  SyntaxError: future feature annotations is not defined
  ----------------------------------------

• 解决方法

#用pip安装就用pip install -U setuptools
pip3 install -U setuptools