How to add Python to Windows registry

Question

I ve downloaded Enthought Canopy EPD Free  now Canopy Express  from https   www enthought com products epd free  and want to install SciKit Learn  http   sourceforge net projects scikit-learn files   which is not part of the basic EPD Free install    When trying to install it does not find Python in the Windows registry  How do I adjust the registry so that it recognizes the Enthought version of Python

User · Answer

I had the same issue while trying to install bots on a Windows Server. Took me a while to find a solution, but this is what worked for me:

Open Command Prompt as Administrator
Copy this: reg add HKLM\SOFTWARE\Python\PythonCore\2.7\InstallPath /ve /t REG_SZ /d "C:\Python27" /f and tailor for your specifications.
Right click and paste the tailored version into Command Prompt and hit Enter!

Anyway, I hope that this can help someone in the future.

User · Answer

I installed ArcGIS Pro 1 4 and it didn t register the Python 3 5 2 it installed which prevented me from installing any add-ons  I resolved this by using the  reg  command in an Administrator PowerShell session to manually create and populate the necessary registry keys values  where Python is installed in C  Python35    reg add  HKLM Software Python PythonCore 3 5 Help Main Python Documentation   reg 64  ve  t REG SZ  d  C  Python35 Doc Python352 chm  reg add  HKLM Software Python PythonCore 3 5 InstallPath   reg 64  ve  t REG SZ  d  C  Python35   reg add  HKLM Software Python PythonCore 3 5 InstallPath InstallGroup   reg 64  ve  t REG SZ  d  Python 3 5  reg add  HKLM Software Python PythonCore 3 5 PythonPath   reg 64  ve  t REG SZ  d  C  Python35 Lib C  Python35 DLLs C  Python35 Lib lib-tk    I find this easier than using Registry Editor but that s solely a personal preference   The same commands can be executed in CMD EXE session if you prefer  just make sure you run it as Administrator

User · Answer

You can find the Python executable with this command   C   gt  where python exe   It should return something like   C  Users  lt user gt  AppData Local enthought Canopy32 User python exe   Open regedit  navigate to HKEY CURRENT USER SOFTWARE Python PythonCore  lt version gt  PythonPath and add or edit the default key with this the value found in the first command  Logout  login and python should be found  SciKit can now be installed   See Additional    application paths    in https   docs python org 2 using windows html finding-modules for more details

User · Answer

English  In case that it serves to someone  I leave here the Windows 10 base register for Python 3 4 4 - 64 bit   Espa  ol      Por si alguien lo necesita todav  a  este es el registro base de Windows 10 para Python 3 4 4     Windows Registry Editor Version 5 00   HKEY CURRENT USER Software Python PythonCore 3 4   DisplayName   Python 3 4  64-bit    SupportUrl   http   www python org    Version   3 4 4   SysVersion   3 4   SysArchitecture   64bit    HKEY CURRENT USER Software Python PythonCore 3 4 Help    HKEY CURRENT USER Software Python PythonCore 3 4 Help Main Python Documentation     C   Python34  Doc  python364 chm    HKEY CURRENT USER Software Python PythonCore 3 4 Idle     C   Python34  Lib  idlelib  idle pyw    HKEY CURRENT USER Software Python PythonCore 3 4 IdleShortcuts    dword 00000001   HKEY CURRENT USER Software Python PythonCore 3 4 InstalledFeatures    HKEY CURRENT USER Software Python PythonCore 3 4 InstallPath     C   Python34     ExecutablePath   C   Python34  python exe   WindowedExecutablePath   C   Python34  pythonw exe    HKEY CURRENT USER Software Python PythonCore 3 4 PythonPath     C   Python34  Lib   C   Python34  DLLs

User · Answer

When installing Python 3 4 the  Add python exe to Path  came up unselected  Re-installed with this selected and problem resolved

User · Answer

I faced to the same problem  I solved it by    navigate to HKEY CURRENT USER Software Python PythonCore 3 4 InstallPath and edit the default key with the output of C   gt  where python exe command  navigate to HKEY CURRENT USER Software Python PythonCore 3 4 InstallPath InstallGroup and edit the default key with Python 3 4      Note  My python version is 3 4 and you need to replace 3 4 with your   python version    Normally you can find Registry entries for Python in HKEY LOCAL MACHINE SOFTWARE Python PythonCore  lt version gt   You just need to copy those entries to HKEY CURRENT USER Software Python PythonCore  lt version gt

[python] How to add Python to Windows registry

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