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I have only been using Python seriously at work for the previous year (2.7), so I apologise if this is a stupid question.

I want to upgrade to 3.6.

Do I completely uninstall Python from my computer and then start again with 3.6, or can you install 3.6 in parallels with 2.7?

I rather completely reinstall and start again, are there any problems with doing that?

This is different from: https://stackoverflow.com/questions/2547554/official-multiple-python-versions-on-the-same-machine As I want to know if there are any problems with uninstalling Python 2.7 first./

Many thanks!

Nicholas
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  • Your system most likely needs the older version of Python, so do not uninstall it. – adder Oct 11 '17 at 06:52
  • Your OS is probably relying on your Python 2.7 installation, I'd not uninstall it. That's certainly the case for OS X and many Linux distributions. – Martijn Pieters Oct 11 '17 at 06:53
  • You can have both side by side. In fact, removing Python 2.x on Mac OSX [is not recommended](https://superuser.com/questions/528265/is-it-safe-to-uninstall-python-2-from-os-x-10-8-mountain-lion). – Manish Giri Oct 11 '17 at 06:53
  • I am sorry, I should have said I am using Windows. What do you mean by 'relying'? and thank you. – Nicholas Oct 11 '17 at 06:54
  • Relying == lots of software on OS X and Linux use Python to run in, removing Python on those platforms will break the OS. Windows doesn't so it is safe to remove Python 2.7 there. – Martijn Pieters Oct 11 '17 at 07:09
  • Great, thank you Martijn. I understand – Nicholas Oct 11 '17 at 07:15

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