When I try to pip install any package I'm getting this error:

Could not install packages due to an EnvironmentError: [Errno 13] Permission denied: '/usr/local/lib/python2.7/dist-packages/numpy'
Consider using the `--user` option or check the permissions.

When I try to sudo pip install anything I'm getting the following error.

Traceback (most recent call last): File "/usr/bin/pip", line 9, in <module> from pip import main
ImportError: cannot import name main
farzand@farzand-linux:~$ 

1 Answer

There are two different pip packages in Ubuntu 18.04: python-pip (for Python 2.x) and python3-pip (for Python 3.x). To install packages that are compatible with the default Python version in 18.04 you need to install python3-pip.

sudo apt install python3-pip

You can also install numpy with either:

sudo apt install python3-numpy # for Python 3.x

or

sudo apt install python-numpy # for Python 2.x in Ubuntu 20.04 and earlier 

Note the python- and python3- convention for prefacing package names of Python 2.x and Python 3.x packages in the default Ubuntu repositories.

_{How to upgrade pip to latest version?}

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