Hello, It depends on the operating system. For example on Ubuntu, the default python version is still 2.7. When you install both python2.7 and python3 on a system, then usually the "pip" will be a symlink to pip version 2 or 3. The default python interpreter can be different on different systems.
The most portable way to run pip with a given version (AFAIK) is to use "python -m pip" instead of "pip". E.g.: python3 -m pip install PACKAGE_NAME However, there is still a problem when you have multiple python versions on the same machine. For example, python3.6 and python3.7. On those systems, python3 will be a symlink to the default one. For example: $ which python /usr/bin/python $ ls -lah /usr/bin/python lrwxrwxrwx 1 root root 9 apr 16 2018 /usr/bin/python -> python2.7 $ which python3 /usr/bin/python3 $ ls -lah /usr/bin/python3 lrwxrwxrwx 1 root root 9 oct 25 13:11 /usr/bin/python3 -> python3.6 Regards, Laszlo 2019. 03. 30. 9:20 keltezéssel, Arup Rakshit írta: > Hi, > > When I read this https://pip.pypa.io/en/stable/installing/ it says I > have the pip installed when I installed the python from official doc. > But when I run the `pip` command from shell, I get error, but pip3 works. > > ~/python_playground ▶ pip --version > > zsh: command not found: pip > > ~/python_playground ⍉ > ▶ pip3 --version > > pip 18.1 from > /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip > (python 3.7) > > Do I always need to install using pip3 program then? > > > Thanks, > > Arup Rakshit > a...@zeit.io > > > -- https://mail.python.org/mailman/listinfo/python-list
