Python & Windows: Where is the python launcher?

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悲哀的现实
悲哀的现实 2020-12-14 18:17

I\'m trying to use different versions of python on win7, and I was told that I can use the python laucher.

I find the docs fo

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  •  一生所求
    2020-12-14 18:39

    It should be in the root directory of Python 3.3 installs and higher. It is not available for Python2.

    Go to C:\PythonXX\ and you should find py.exe for your version.

    In Command Prompt or your favorite shell (like Cygwin), run:

    py -3.3 -m path/to/myscript.py
    

    However, this only works if you have a 3.3 or higher installed.

    EDIT: Anaconda does not come with Python launcher. It is only available for an ActiveState, standard, or probably many other installs.

    EDIT2: Here are two brand-new, Python 3.4 installs of ActiveState Python and Anaconda Python, screenshotted. Notice how Anaconda Python does not include py.exe and a lot of other (non-essential) executables?

    Anaconda Install ActiveState Install

    EDIT3: After some "difficult" testing, just set anaconda as your default install for Python3.4 and grab the py.exe from another install. That is all. So you can install Python3.4 from another source, uninstall it, and save the py.exe, make sure it is in the system path, and the python launcher is fully installed.

    EDIT4: Actually there's also a standalone installer available here: https://bitbucket.org/vinay.sajip/pylauncher/downloads

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