How can I find where Python is installed on Windows

Question

I want to find out my Python installation path on Windows  For example   C  Python25   How can I find where Python is installed

User · Answer

If you have Python in your environment variable then you can use the following command in cmd   where python or for Unix enviroment  which python command line image

User · Answer

Go to C  Users USER AppData Local Programs Python Python36 if it is not there then  open console by windows  R Then type cmd and hit enter type python if installed in your local file it will show you its version from there type the following  import os import sys os path dirname sys executable

User · Answer

You can search for the  environmental variable for you account   If you have added the Python in the path  it ll show as  path  in your environmental variable account   but almost always you will find it in   C  Users  User name  AppData Local Programs Python Python version    the  AppData  folder may be hidden  make it visible from the view section of toolbar

User · Answer

In the sys package  you can find a lot of useful information about your installation   import sys print sys executable print sys exec prefix   I m not sure what this will give on your Windows system  but on my Mac executable points to the Python binary and exec prefix to the installation root   You could also try this for inspecting your sys module   import sys for k v in sys   dict   items        if not callable v           print   20s   s     k repr v

User · Answer

Simple way is   1  open CMD 2  type  gt  gt where python

User · Answer

On my windows installation  I get these results    gt  gt  gt  import sys  gt  gt  gt  sys executable  C   Python26  python exe   gt  gt  gt  sys platform  win32   gt  gt  gt     You can also look in sys path for reasonable locations

User · Answer

if you still stuck or you get this  C    Users   name of your   AppData   Local   Programs   Python   Python36   simply do this replace 2   with one  C  Users akshay AppData Local Programs Python Python36

User · Answer

If You want the Path After successful installation  then first open you CMD and type python or python -i It Will Open interactive shell for You and Then type  import sys sys executable  Hit enter and you will get path where your python is installed

User · Answer

To know where Python is installed you can execute where python in your cmd exe

User · Answer

I installed 2 and 3 and had the same problem finding 3  Fortunately  typing path at the windows path let me find where I had installed it  The path was an option when I installed Python which I just forgot  If you didn t select setting the path when you installed Python 3 that probably won t work - unless you manually updated the path when you installed it  In my case it was at c  Program Files Python37 python exe

User · Answer

In your Python interpreter  type the following commands   gt  gt  gt  import os  gt  gt  gt  import sys  gt  gt  gt  os path dirname sys executable   C   Python25   Also  you can club all these and use a single line command  Open cmd and enter following command python -c  quot import os  sys  print os path dirname sys executable   quot

User · Answer

It would be either of   C  Python36  C  Users  Your logged in User  AppData Local Programs Python Python36

User · Answer

If you use anaconda navigator on windows  you can go too enviornments and scroll over the enviornments  the root enviorment will indicate where it is installed  It can help if you want to use this enviorment when you need to connect this to other applications  where you want to integrate some python code

User · Answer

If you need to know the installed path under Windows without starting the python interpreter  have a look in the Windows registry   Each installed Python version will have a registry key in either    HKLM SOFTWARE Python PythonCore versionnumber InstallPath HKCU SOFTWARE Python PythonCore versionnumber InstallPath   In 64-bit Windows  it will be under the Wow6432Node key    HKLM SOFTWARE Wow6432Node Python PythonCore versionnumber InstallPath

User · Answer

If you have the py command installed  which you likely do  then just use the --list-paths argument to the command   py --list-paths  Example output      Installed Pythons found by py Launcher for Windows    -3 8-32        C  Users cscott AppData Local Programs Python Python38-32 python exe      -2 7-64        C  Python27 python exe   The   indicates the currently active version for scripts executed using the py command

User · Answer

Its generally   C  Users user-name AppData Local Programs Python Python-version   or  try using  in cmd            where python

User · Answer

If anyone needs to do this in C  I m using the following code   static string GetPythonExecutablePath int major   3        var software    SOFTWARE       var key   Registry CurrentUser OpenSubKey software       if  key    null          key   Registry LocalMachine OpenSubKey software       if  key    null          return null       var pythonCoreKey   key OpenSubKey   Python PythonCore        if  pythonCoreKey    null          pythonCoreKey   key OpenSubKey   Wow6432Node Python PythonCore        if  pythonCoreKey    null          return null       var pythonVersionRegex   new Regex       major         d  -  d           var targetVersion   pythonCoreKey GetSubKeyNames                                            Select n   gt  pythonVersionRegex Match n                                            Where m   gt  m Success                                           OrderByDescending m   gt  int Parse m Groups 1  Value                                            ThenByDescending m   gt  int Parse m Groups 2  Value                                            Select m   gt  m Groups 0  Value  First         var installPathKey   pythonCoreKey OpenSubKey targetVersion      InstallPath        if  installPathKey    null          return null       return  string installPathKey GetValue  ExecutablePath

User · Answer

This worked for me  C  Users Your user name AppData Local Programs Python  My currently installed python version is 3 7 0  Hope this helps

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