How To Install Python2 (pip2) & Python3 (pip) Successfully On Ubuntu

This article will tell you how to install both Python2 (pip2) and Python3 (pip3) on Ubuntu.

1. Install Python2 (pip2) On Ubuntu Steps.

  1. Ubuntu 20.04 repositories do not contain Python2, so we should install Python 2 in Ubuntu first.
  2. Run the command sudo add-apt-repository universe to set up the universe repository.
    $ sudo add-apt-repository universe
    'universe' distribution component is already enabled for all sources.
    
  3. Run the command sudo apt update to update the apt packages.
    $ sudo apt update
    Hit:1 http://cn.archive.ubuntu.com/ubuntu focal InRelease
    ......
    Fetched 1,111 kB in 6s (184 kB/s)                        
    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    203 packages can be upgraded. Run 'apt list --upgradable' to see them.
    
  4. Run the command sudo apt install python2 to install python2 on Ubuntu.
    $ sudo apt install python2
    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    The following additional packages will be installed:
      libpython2-stdlib libpython2.7-minimal
      libpython2.7-stdlib python2-minimal python2.7
      python2.7-minimal
    Suggested packages:
      python2-doc python-tk python2.7-doc binfmt-support
    The following NEW packages will be installed:
      libpython2-stdlib libpython2.7-minimal
      libpython2.7-stdlib python2 python2-minimal python2.7
      python2.7-minimal
    0 upgraded, 7 newly installed, 0 to remove and 168 not upgraded.
    Need to get 3,816 kB of archives.
    After this operation, 16.5 MB of additional disk space will be used.
    Do you want to continue? [Y/n] y
    Get:1 http://cn.archive.ubuntu.com/ubuntu focal-updates/universe amd64 libpython2.7-minimal amd64 2.7.18-1~20.04.1 [335 kB]
    ....
  5. After that, you can run the command python2 –version to check whether python2 has been installed successfully or not.
    $ python2 --version
    Python 2.7.18
    
  6. You can read the article How To Install The Latest PIP Version And Ipykernel For Python 2.7 to learn how to install pip2 for Python 2.7.
  7. If you want to invoke the Python2 installed pip command, you can run the command python2 -m pip, this command will run the pip command as a python2 module.
  8. We can add the pip executable file path to the system environment PATH variable’s value and then you can call it directly.
  9. First, run the command python2 -m pip –version to get the Python2 pip installed location.
    $ python2 -m pip --version
    pip 20.3.4 from /home/jerry/.local/lib/python2.7/site-packages/pip (python 2.7)
    
  10. Open a terminal in Ubuntu, run the command cd ~ to go to the user home directory.
  11. Run the command $ sudo gedit .profile to open the text editor to edit the .profile file.
  12. Add the text line PATH=”$HOME/.local/lib/python2.7/site-packages/pip:$PATH” at the end of the .profile file.
  13. Click the Save button to save the changes.
  14. Run the command . ./.profile to activate the changes.
  15. Run the command env to print out all the system environment variables values including the PATH variable.
    $ env
    ......
    PATH=/home/jerry/.local/lib/python2.7/site-packages/pip:/home/jerry/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
    ......
    
  16. Now you can run the pip command directly in the terminal.
    $ pip --version
    pip 20.3.4 from /home/jerry/.local/lib/python2.7/site-packages/pip (python 2.7)
    

2. Install Python3 (pip3) On Ubuntu Steps.

  1. Run the command sudo apt update to update the apt packages.
  2. Run the command sudo apt install python3-pip to install Python 3 and pip.
    $ sudo apt install python3-pip
    Reading package lists... Done
    Building dependency tree       
    Reading state information... Done
    The following additional packages will be installed:
      libexpat1-dev libpython3-dev libpython3.8
      libpython3.8-dev libpython3.8-minimal
      libpython3.8-stdlib python-pip-whl python3-dev
      python3-distutils python3-setuptools python3-wheel
      python3.8 python3.8-dev python3.8-minimal zlib1g-dev
    Suggested packages:
      python-setuptools-doc python3.8-venv python3.8-doc
      binfmt-support
    The following NEW packages will be installed:
      libexpat1-dev libpython3-dev libpython3.8-dev
      python-pip-whl python3-dev python3-distutils
      python3-pip python3-setuptools python3-wheel
      python3.8-dev zlib1g-dev
    The following packages will be upgraded:
      libpython3.8 libpython3.8-minimal libpython3.8-stdlib
      python3.8 python3.8-minimal
    5 upgraded, 11 newly installed, 0 to remove and 163 not upgraded.
    Need to get 7,271 kB/13.6 MB of archives.
    After this operation, 28.4 MB of additional disk space will be used.
    Do you want to continue? [Y/n] Y
    Get:1 http://cn.archive.ubuntu.com/ubuntu focal/main amd64 libexpat1-dev amd64 2.2.9-1build1 [116 kB]
    Get:2 http://cn.archive.ubuntu.com/ubuntu focal-updates/main amd64 libpython3.8-dev amd64 3.8.10-0ubuntu1~20.04.2 [3,950 kB]
    Get:3 http://cn.archive.ubuntu.com/ubuntu focal/main amd64 libpython3-dev amd64 3.8.2-0ubuntu2 [7,236 B]
    Get:4 http://cn.archive.ubuntu.com/ubuntu focal-updates/universe amd64 python-pip-whl all 20.0.2-5ubuntu1.6 [1,805 kB]
    Get:5 http://cn.archive.ubuntu.com/ubuntu focal-updates/main amd64 zlib1g-dev amd64 1:1.2.11.dfsg-2ubuntu1.2 [155 kB]
    Get:6 http://cn.archive.ubuntu.com/ubuntu focal-updates/main amd64 python3.8-dev amd64 3.8.10-0ubuntu1~20.04.2 [510 kB]
    Get:7 http://cn.archive.ubuntu.com/ubuntu focal-updates/main amd64 python3-distutils all 3.8.10-0ubuntu1~20.04 [141 kB]
    Get:8 http://cn.archive.ubuntu.com/ubuntu focal/main amd64 python3-dev amd64 3.8.2-0ubuntu2 [1,212 B]
    Get:9 http://cn.archive.ubuntu.com/ubuntu focal/main amd64 python3-setuptools all 45.2.0-1 [330 kB]
    Get:10 http://cn.archive.ubuntu.com/ubuntu focal/universe amd64 python3-wheel all 0.34.2-1 [23.8 kB]
    Get:11 http://cn.archive.ubuntu.com/ubuntu focal-updates/universe amd64 python3-pip all 20.0.2-5ubuntu1.6 [231 kB]
    Fetched 7,271 kB in 31s (237 kB/s)                       
    (Reading database ... 186789 files and directories currently installed.)
    Preparing to unpack .../00-libpython3.8_3.8.10-0ubuntu1~20.04.2_amd64.deb ...
    Unpacking libpython3.8:amd64 (3.8.10-0ubuntu1~20.04.2) over (3.8.10-0ubuntu1~20.04) ...
    Preparing to unpack .../01-python3.8_3.8.10-0ubuntu1~20.04.2_amd64.deb ...
    Unpacking python3.8 (3.8.10-0ubuntu1~20.04.2) over (3.8.10-0ubuntu1~20.04) ...
    Preparing to unpack .../02-libpython3.8-stdlib_3.8.10-0ubuntu1~20.04.2_amd64.deb ...
    Unpacking libpython3.8-stdlib:amd64 (3.8.10-0ubuntu1~20.04.2) over (3.8.10-0ubuntu1~20.04) ...
    Preparing to unpack .../03-python3.8-minimal_3.8.10-0ubuntu1~20.04.2_amd64.deb ...
    Unpacking python3.8-minimal (3.8.10-0ubuntu1~20.04.2) over (3.8.10-0ubuntu1~20.04) ...
    Preparing to unpack .../04-libpython3.8-minimal_3.8.10-0ubuntu1~20.04.2_amd64.deb ...
    Unpacking libpython3.8-minimal:amd64 (3.8.10-0ubuntu1~20.04.2) over (3.8.10-0ubuntu1~20.04) ...
    Selecting previously unselected package libexpat1-dev:amd64.
    Preparing to unpack .../05-libexpat1-dev_2.2.9-1build1_amd64.deb ...
    Unpacking libexpat1-dev:amd64 (2.2.9-1build1) ...
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    Selecting previously unselected package python-pip-whl.
    Preparing to unpack .../08-python-pip-whl_20.0.2-5ubuntu1.6_all.deb ...
    Unpacking python-pip-whl (20.0.2-5ubuntu1.6) ...
    Selecting previously unselected package zlib1g-dev:amd64.
    Preparing to unpack .../09-zlib1g-dev_1%3a1.2.11.dfsg-2ubuntu1.2_amd64.deb ...
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    Unpacking python3-dev (3.8.2-0ubuntu2) ...
    Selecting previously unselected package python3-setuptools.
    Preparing to unpack .../13-python3-setuptools_45.2.0-1_all.deb ...
    Unpacking python3-setuptools (45.2.0-1) ...
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    ...
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    Selecting previously unselected package python3-pip.
    Preparing to unpack .../15-python3-pip_20.0.2-5ubuntu1.6_all.deb ...
    Unpacking python3-pip (20.0.2-5ubuntu1.6) ...
    Setting up python3-distutils (3.8.10-0ubuntu1~20.04) ...
    Setting up libpython3.8-minimal:amd64 (3.8.10-0ubuntu1~20.04.2) ...
    Setting up python3-setuptools (45.2.0-1) ...
    Setting up python3-wheel (0.34.2-1) ...
    Setting up libexpat1-dev:amd64 (2.2.9-1build1) ...
    Setting up zlib1g-dev:amd64 (1:1.2.11.dfsg-2ubuntu1.2) ...
    Setting up python3.8-minimal (3.8.10-0ubuntu1~20.04.2) ...
    Setting up python-pip-whl (20.0.2-5ubuntu1.6) ...
    Setting up libpython3.8-stdlib:amd64 (3.8.10-0ubuntu1~20.04.2) ...
    Setting up python3.8 (3.8.10-0ubuntu1~20.04.2) ...
    Setting up libpython3.8:amd64 (3.8.10-0ubuntu1~20.04.2) ...
    Setting up python3-pip (20.0.2-5ubuntu1.6) ...
    Setting up libpython3.8-dev:amd64 (3.8.10-0ubuntu1~20.04.2) ...
    Setting up python3.8-dev (3.8.10-0ubuntu1~20.04.2) ...
    Setting up libpython3-dev:amd64 (3.8.2-0ubuntu2) ...
    Setting up python3-dev (3.8.2-0ubuntu2) ...
    Processing triggers for mime-support (3.64ubuntu1) ...
    Processing triggers for gnome-menus (3.36.0-1ubuntu1) ...
    Processing triggers for libc-bin (2.31-0ubuntu9.2) ...
    Processing triggers for man-db (2.9.1-1) ...
    Processing triggers for desktop-file-utils (0.24-1ubuntu3) ...
  3. After that, you can run the command python3 –version and pip3 –version to check the installation result. If you get the below output that means your installation is successful.
    $ python3 --version
    Python 3.8.10
    
    $ pip3 --version
    pip 20.0.2 from /usr/lib/python3/dist-packages/pip (python 3.8)

3. How To Upgrade PIP Versions.

  1. Run the below command to upgrade the pip installation for python3.
    $ python3 -m pip install --upgrade pip
    ......
    Installing collected packages: pip
    Successfully installed pip-21.3.1
  2. After you upgrade the pip successfully and restart the Ubuntu OS, you will find the system has created 3 files related to pip, they are pippip2, pip3, you can run the below command to get the 3 pip related files saved directory & version.
    $ which pip
    /home/jerry/.local/bin/pip
    $ pip --version
    pip 21.3.1 from /home/jerry/.local/lib/python3.8/site-packages/pip (python 3.8)
    
    $ which pip2
    /home/jerry/.local/bin/pip2
    $ pip2 --version
    pip 20.3.4 from /home/jerry/.local/lib/python2.7/site-packages/pip (python 2.7)
    
    $ which pip3
    /home/jerry/.local/bin/pip3
    $ pip3 --version
    pip 20.0.2 from /usr/lib/python3/dist-packages/pip (python 3.8)
    
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