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Issue where pip becomes unusable after pip install --upgrade pip on CentOS 7: ImportError: No module named typing

Published: 2021-06-16
python pip centos

Problem Description

pip安装某第三方 SDK，提示升级 pip，按提示升级 pip 后报错

pip Upgrade Command that Causes the Error

pip install --upgrade pip

pip Error Message

Traceback (most recent call last):
  File "/usr/bin/pip", line 9, in <module>
    load_entry_point('pip==21.1.2', 'console_scripts', 'pip')()
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 378, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2566, in load_entry_point
    return ep.load()
  File "/usr/lib/python2.7/site-packages/pkg_resources.py", line 2260, in load
    entry = __import__(self.module_name, globals(),globals(), ['__name__'])
  File "/usr/lib/python2.7/site-packages/pip/__init__.py", line 1, in <module>
    from typing import List, Optional
ImportError: No module named typing

Solution

  1. Uninstall the current pip
yum remove python-pip
  1. Reinstall the latest pip for Python 2 from the official website
curl https://bootstrap.pypa.io/pip/2.7/get-pip.py -o get-pip.py
python get-pip.py

Reference Articles

https://zhoudl.jschrj.com/posts/418.html https://pip.pypa.io/en/stable/installing