[Mailman-Users] Now that Python 2 is dead

Steven D'Aprano steve at pearwood.info
Sat Apr 13 07:05:39 EDT 2019

On Thu, Apr 11, 2019 at 03:25:50PM -0500, Dimitri Maziuk via Mailman-Users wrote:

> The problem is reliance on third-party libraries coupled with absence of
> usable package management system. It will "generally" run within the
> same major interpreter version unless it imports a package that got
> updated by some other python app on the system.

That doesn't sound like the way Python works to me.

If you're running MM2 under Python 2.7, and you also have Python 3.7 
installed, the two Python interpreters don't share packages unless 
you're doing something unusual. So updating one version of the installed 
package shouldn't touch the other.

That's been my experience, for what its worth.


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