Python – Could not install packages due to a “Environment error :[error 13]: permission denied : ‘usr/local/bin/f2py'”

You will need to have root access to do this. If you aren't already the administrative user, login as the administrator. Then use 'sudo' to change the permissions:

sudo chmod go-w /usr/local/bin

Obviously, that will mean you can no longer install material in /usr/local/bin except via 'sudo', but you probably shouldn't be doing that anyway.

For pip >= 21.2 use:

pip index versions pylibmc

Note that this command is experimental, and might change in the future!

For pip >= 21.1 use:

pip install pylibmc==

For pip >= 20.3 use:

pip install --use-deprecated=legacy-resolver pylibmc==

For pip >= 9.0 use:

$ pip install pylibmc==
Collecting pylibmc==
  Could not find a version that satisfies the requirement pylibmc== (from 
  versions: 0.2, 0.3, 0.4, 0.5.1, 0.5.2, 0.5.3, 0.5.4, 0.5.5, 0.5, 0.6.1, 0.6, 
  0.7.1, 0.7.2, 0.7.3, 0.7.4, 0.7, 0.8.1, 0.8.2, 0.8, 0.9.1, 0.9.2, 0.9, 
  1.0-alpha, 1.0-beta, 1.0, 1.1.1, 1.1, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.3.0)
No matching distribution found for pylibmc==

The available versions will be printed without actually downloading or installing any packages.

For pip < 9.0 use:

pip install pylibmc==blork

where blork can be any string that is not a valid version number.