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Ok, so I just installed Python 2.7, but I all ready had python 2.5. I realized that because I installed Python 2.7 last, IDLE automatically opens Python 2.7 IDLE, which I don't want. Is there any way to set the Python 2.5 IDLE to automatically open when I use the right click option on a python source file? Thanks.

Tom
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  • Windows? Linux? Mac? If on Windows, right-click -> Property and change the file association to the older IDLE, that should do it. – Borgleader Sep 16 '12 at 00:27
  • No because the Open With IDLE is a custom option in the right click menu. I can change what it opens with, but now what that option does. – Tom Sep 16 '12 at 00:33

2 Answers2

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You can easily create or edit the right-click properties for a file.

To edit the right-click menu for a particular file extension:

  1. Run assoc .py from the command line and note the name of the association:

    C:>assoc .py
    .py=Python.File

  2. Run regedit.exe.

  3. Browse to HKEY_CLASSES_ROOT\Python.File\shell.
  4. Create a key under shell called Edit with IDLE (or however you want it to show up in the menu).
  5. Create a key under Edit with Idle called command.

  6. Edit the default value to run the command you want. Use "%1" to insert the name of the right-clicked file. Something like:

    c:\python25\pythonw.exe c:\python25\lib\idlelib\idle.pyw "%1"

Alternatively, just save the following as idle.reg and double-click it to insert this value in the registry.

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\Python.File\shell\Edit with IDLE\command]
@="\"C:\\Python25\\pythonw.exe\" \"C:\\python25\\Lib\\idlelib\\idle.pyw\" \"%1\""
Mark Tolonen
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Unless you need Python 2.7 for some reason, the simplest way to achieve this in Windows is to uninstall Python and reinstall Python 2.5 again.

Eliot Ball
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