This answer assumes that you have python3.6
installed. For python3.7
, replace 3.6
with 3.7
. For python3.8
, replace 3.6
with 3.8
, but it may also first require the python3.8-distutils
package.
Installation with sudo
With regard to installing pip
, using curl
(instead of wget
) avoids writing the file to disk.
curl https://bootstrap.pypa.io/get-pip.py | sudo -H python3.6
The -H
flag is evidently necessary with sudo
in order to prevent errors such as the following when installing pip for an updated python interpreter:
The directory '/home/someuser/.cache/pip/http' or its parent directory
is not owned by the current user and the cache has been disabled.
Please check the permissions and owner of that directory. If executing
pip with sudo, you may want sudo's -H flag.
The directory
'/home/someuser/.cache/pip' or its parent directory is not owned by the
current user and caching wheels has been disabled. check the
permissions and owner of that directory. If executing pip with sudo,
you may want sudo's -H flag.
Installation without sudo
curl https://bootstrap.pypa.io/get-pip.py | python3.6 - --user
This may sometimes give a warning such as:
WARNING: The script wheel is installed in '/home/ubuntu/.local/bin'
which is not on PATH. Consider adding this directory to PATH or, if
you prefer to suppress this warning, use --no-warn-script-location.
Verification
After this, pip
, pip3
, and pip3.6
can all be expected to point to the same target:
$ (pip -V && pip3 -V && pip3.6 -V) | uniq
pip 18.0 from /usr/local/lib/python3.6/dist-packages (python 3.6)
Of course you can alternatively use python3.6 -m pip
as well.
$ python3.6 -m pip -V
pip 18.0 from /usr/local/lib/python3.6/dist-packages (python 3.6)