每当我试图使用pip安装任何包时，我都会得到这个导入错误:
guru@guru-notebook:~$ pip3 install numpy
Traceback (most recent call last):
File "/usr/bin/pip3", line 9, in <module>
from pip import main
ImportError: cannot import name 'main'
guru@guru-notebook:~$ cat `which pip3`
#!/usr/bin/python3
# GENERATED BY DEBIAN
import sys
# Run the main entry point, similarly to how setuptools does it, but because
# we didn't install the actual entry point from setup.py, don't use the
# pkg_resources API.
from pip import main
if __name__ == '__main__':
sys.exit(main())
它之前工作得很好，我不知道为什么它会抛出这个错误。
我已经搜索了这个错误，但找不到任何方法来修复它。
如果你需要进一步的细节，请让我知道，我会更新我的问题。
您一定是无意中升级了您的系统pip(可能是通过sudo pip install pip—upgrade之类的程序)
皮普10。X调整它内部的位置。您看到的pip3命令是由您的包维护者提供的(想必debian基于这里?)，而不是由pip管理的文件。
您可以在pip的问题跟踪器上阅读更多有关此的信息
您可能不希望升级您的系统pip，而是使用virtualenv。
要恢复pip3二进制文件，您需要sudo python3 -m pip uninstall pip && sudo apt install python3-pip—重新安装。
如果您想继续在“不受支持的领域”(在系统包管理器之外升级系统包)，您可能可以使用python3 -m pip…而不是pip3。
我使用sudo apt删除python3-pip，然后pip工作。
~ sudo pip install pip --upgrade
[sudo] password for sen:
Traceback (most recent call last):
File "/usr/bin/pip", line 9, in <module>
from pip import main
ImportError: cannot import name 'main'
➜ ~ sudo apt remove python3-pip
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
libexpat1-dev libpython3-dev libpython3.5-dev python-pip-whl python3-dev python3-wheel
python3.5-dev
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED:
python3-pip
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
After this operation, 569 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 215769 files and directories currently installed.)
Removing python3-pip (8.1.1-2ubuntu0.4) ...
Processing triggers for man-db (2.7.5-1) ...
➜ ~ pip
Usage:
pip <command> [options]
