Ubuntu16.04更新pip后报错sys.stderr.write(f”ERROR: {exc}”)

问题描述

Ubuntu16.04 更新pip后报错：

Traceback (most recent call last):
  File "/usr/bin/pip", line 9, in <module>
    load_entry_point('pip==21.0.1', '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/_internal/cli/main.py", line 60
    sys.stderr.write(f"ERROR: {exc}")
                                   ^
SyntaxError: invalid syntax

解决方案

1. 新建文件 vim get-pip.py
2. 选择与python版本对应的pip:

   https://bootstrap.pypa.io/pip/3.5/get-pip.py # for python3.5
   https://bootstrap.pypa.io/pip/2.7/get-pip.py # for python2.7
   

   复制内容到get-pip.py
3. 执行python get-pip.py或python3 get-pip.py
4. 安装完成～