System Python conflict between Anaconda and existing Python installation

python installation python-3.4 anaconda
jxramos picture jxramos · Aug 20, 2015 · Viewed 30k times · Source

I've been going with a basic Python3.4 install that I've been installing many modules into for over the past month but have reached a point where pip is coming up short and I'm going to just install the full Anaconda on my system to go deeper into bokeh-server stuff.

I get a popup during the Windows 64bit installer (Anaconda3-2.3.0-Windows-x86_64.exe) saying

A version of Python 3.4 (64-bit) is already at C:\Python34\ We recommend that if you want Anaconda registered as your system Python, you unregister this Python first. If you really know this is what you want, click OK, otherwise click cancel to continue. enter image description here

Didn't find much documentation on this subject, and I'm not really sure how to "unregister" that installation of Python apart from uninstalling it entirely from Windows which I imagine would accomplish such a thing. Is this basically telling me to check how my Python Launcher for Windows is setup after the Anaconda installation? I'm completely unfamiliar with this notion of python system registration? Is that just a round about warning about which python version takes precedence on the system path, or which installation holds the file associations?

Answer

Quaternion picture Quaternion · May 4, 2018

The solution is simply to uninstall python (for example, run the original python installer and select the uninstall option). The python key in the windows registry will be removed (which is what unregister means in this context).

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