which pip3 return nothing now and :
sudo apt install python3-pip
Reading package lists... Done
Building dependency tree
Reading state information... Done
python3-pip is already the newest version (9.0.1-2.3~ubuntu1.18.04.1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
and I cant use pip3 not recognized
Furthermore if I follow instruction from This page has moved - pip documentation v22.2.2 it’s the same way as before using get-pip.py to install pip.
So if I follow the instructions:
nano@nano-desktop:~$ python3 get-pip.py pip==19.3
WARNING: pip is being invoked by an old script wrapper. This will fail in a future version of pip.
Please see https://github.com/pypa/pip/issues/5599 for advice on fixing the underlying issue.
To avoid this problem you can invoke Python with '-m pip' instead of running pip directly.
Defaulting to user installation because normal site-packages is not writeable
Collecting pip==19.3
Downloading pip-19.3-py2.py3-none-any.whl (1.4 MB)
|████████████████████████████████| 1.4 MB 2.0 MB/s
Installing collected packages: pip
Successfully installed pip-19.3
nano@nano-desktop:~$
nano@nano-desktop:~$ which pip3
/home/nano/.local/bin/pip3