Python3 pip3 install broken on Ubuntu?

Question

我在Ubuntu16.04上安装了python3和pip3, 但是pip3不能正常使用.pip3 install和其他命令的信息:

# pip3 install xlwt
Traceback (most recent call last):
File "/usr/bin/pip3", line 9, in <module>
  from pip import main
File "/usr/lib/python3/dist-packages/pip/__init__.py", line 21, in <module>
  from pip._vendor.requests.packages.urllib3.exceptions import DependencyWarning
ModuleNotFoundError: No module named 'pip._vendor.requests'

"which pip3" 和 "pip3 --version"的执行结果:

# which pip3
/usr/bin/pip3

# pip3 --version
Traceback (most recent call last):
  File "/usr/bin/pip3", line 9, in <module>
    from pip import main
  File "/usr/lib/python3/dist-packages/pip/__init__.py", line 21, in <module>
    from pip._vendor.requests.packages.urllib3.exceptions import DependencyWarning
ModuleNotFoundError: No module named 'pip._vendor.requests'

p.s. Python2 pip 运行正常. "which pip" 和 "pip --version"的输出:

# which pip
/usr/bin/pip

# pip --version
pip 1.5.4 from /usr/local/lib/python2.7/dist-packages/pip-1.5.4-py2.7.egg (python 2.7)

python 和 python3 installation information:

# which python
/usr/bin/python
# which python3
/usr/bin/python3

# python -V
Python 2.7.14
# python3 -V
Python 3.6.3

我再so上也有提问 https://stackoverflow.com/que... . 等待大佬解答, 感谢!

Answer 1

试一试

python3 -m pip install pacakge

Answer 2

尝试重新安装 pip3:

sudo apt-get upgrade python3-setuptools
sudo easy_install3 --upgrade pip