Ubuntu18.04 time upgrade all libraries in Python

What is the pip

pip is a Python package management tool that provides a Python package to find, download, install, uninstall function.

Upgrade version pip

The default Ubuntu comes pip (pip 9.0.1) is based on the version of Python2.7

We need to re-install based pip Python3 of:

sudo apt-get install python3-pip

Pip3 upgrade version:

python3 -m pip install --upgrade pip

View Python3 version of pip, if reported the following error:

ImportError: cannot import name main

Workaround: Edit usr / bin / pip3 file

1. before fixing:

from pip import main
if __name__ == '__main__':
    sys.exit(main())

1. Modified:

from pip import __main__
if __name__ == '__main__':
    sys.exit(__main__._main())

Verify the repair has been successfully entered into force: pip3 -V

Terminal printing:

pip 19.3.1 from /home/work/.local/lib/python3.6/site-packages/pip (python 3.6)

Next, a key upgrade all Python packages

Write a Python script that can be executed, the following is the code:

import pkg_resources
from subprocess import call
 
for packages in [dist.project_name for dist in pkg_resources.working_set]:
    call("pip3 install --upgrade " + ''.join(packages) + ' --user', shell=True)

Because my Python3 corresponding pipShi pip3, so the script here call("pip3 install --upgrade " + ''.join(packages) + ' --user', shell=True)is pipto be writtenpip3

Then in view the history of Python version of the package as well as those who:

pip3 list --outdated

Terminal printing:

Package     Version Latest Type
----------- ------- ------ -----
distro-info 0.0.0   0.10   sdist
pycairo     1.16.2  1.18.1 sdist
pycups      1.9.73  1.9.74 sdist
pygobject   3.26.1  3.34.0 sdist

Then use those who can not upgrade packages

pip3 install --upgrade 要升级的包名

Commands one by one to upgrade