What version of Python is on my Mac

Question

I have a mac  when I do   python --version    I got   Python 2 7 6   but when I got to    System Library Frameworks Python framework Versions 3 3   where is 2 7 6 located   any advice what should I do    UPDATE     which -a python python3  usr bin python  usr local bin python3    brew list python python3 Error  No such keg   usr local Cellar python    locate python  WARNING  The locate database   var db locate database  does not exist  To create the database  run the following command     sudo launchctl load -w  System Library LaunchDaemons com apple locate plist  Please be aware that the database can take some time to generate  once the database has been created  this message will no longer appear    in PyCharm editor  the default settings interpreter shows

User · Answer

If you have both Python2 and Python3 installed on your Mac, you can use

python --version

to check the version of Python2, and

python3 --version

to check the version of Python3.

However, if only Python3 is installed, then your system might use python instead of python3 for Python3. In this case, you can just use

python --version

to check the version of Python3.

User · Answer

Use the which command  It will show you the path  which python

User · Answer

Take a look at the docs regarding Python on Mac   The version at  System Library Frameworks Python framework is installed by Apple and is used by the system  It is version 3 3 in your case  You can access and use this Python interpreter  but you shouldn t try to remove it  and it may not be the one that comes up when you type  Python  in a terminal or click on an icon to launch it   You must have installed another version of Python  2 7  on your own at some point  and now that is the one that is launched by default   As other answers have pointed out  you can use the command which python on your terminal to find the path to this other installation

User · Answer

You could have multiple Python versions on your macOS   You may check that by command  type or which command  like   which -a python python2 python2 7 python3 python3 6   Or type python in Terminal and hit Tab few times for auto completion  which is equivalent to   compgen -c python   By default python pip commands points to the first binary found in PATH environment variable depending what s actually installed  So before installing Python packages with Homebrew  the default Python is installed in  usr bin which is shipped with your macOS  e g  Python 2 7 10 on High Sierra   Any versions found in  usr local  such as  usr local bin  are provided by external packages   It is generally advised  that when working with multiple versions  for Python 2 you may use python2 pip2 command  respectively for Python 3 you can use python3 pip3  but it depends on your configuration which commands are available   It is also worth to mention  that since release of Homebrew 1 5 0   on 19 January 2018   the python formula has been upgraded to Python 3 x and a python 2 formula will be added for installing Python 2 7  Before  python formula was pointing to Python 2   For instance  if you ve installed different version via Homebrew  try the following command   brew list python python3   or   brew list   grep  python   it ll show you all Python files installed with the package   Alternatively you may use apropos or locate python command to locate more Python related files   To check any environment variables related to Python  run   env   grep  PYTHON     To address your issues       Error  No such keg   usr local Cellar python   Means you don t have Python installed via Homebrew  However double check by specifying only one package at a time  like brew list python python2 python3      The locate database   var db locate database  does not exist    Follow the advice and run   sudo launchctl load -w  System Library LaunchDaemons com apple locate plist   After the database is rebuild  you can use locate command

User · Answer

Use below command to see all python installations    which -a python

User · Answer

To check third version  we can use  python3 --version

[python] What version of Python is on my Mac?

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