使用pip3时候报 File "/usr/bin/pip3", line 16, in _file "/usr/local/python3/setuptools-19.6/setup.py"

1. 报错显示

[root@localhost ~]#yum install python36
[root@localhost bin]#pip3 --version
Traceback (most recent call last):
  File "/usr/bin/pip3", line 16, in <module>
    sys.exit(main())
TypeError: 'module' object is not callable
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2. 找到__main__.py的路径，把倒数后四行复制到/usr/bin/pip3中

[root@localhost pip]#cat /usr/local/lib/python3.6/site-packages/pip/__main__.py 
from __future__ import absolute_import

import os
import sys

# If we are running from a wheel, add the wheel to sys.path
# This allows the usage python pip-*.whl/pip install pip-*.whl
if __package__ == '':
    # __file__ is pip-*.whl/pip/__main__.py
    # first dirname call strips of '/__main__.py', second strips off '/pip'
    # Resulting path is the name of the wheel itself
    # Add that to sys.path so we can import pip
    path = os.path.dirname(os.path.dirname(__file__))
    sys.path.insert(0, path)

from pip._internal.main import main as _main  # isort:skip # noqa

if __name__ == '__main__':
    sys.exit(_main())
[root@localhost pip]#
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3. 修改/usr/lib/pip3 ，一个from项，一个if项

[root@localhost pip]#cat /usr/bin/pip3
#!/usr/bin/python3

# -*- coding: utf-8 -*-
import re
import sys

try:
    from pip import main
except ImportError:
    # user has most probably upgraded pip in their home
    # so let them run it anyway until ~/.local/bin makes it in front of the PATH
    #from pip._internal import main
    from pip._internal.main import main as _main  # isort:skip # noqa

#if __name__ == '__main__':
#    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
#    sys.exit(main())

if __name__ == '__main__':
    sys.exit(_main())
[root@localhost pip]#

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4. 成功

[root@localhost ~]#pip3 --version
pip 19.3.1 from /usr/local/lib/python3.6/site-packages/pip (python 3.6)
[root@localhost ~]#

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