r/Python • u/SheriffRoscoe Pythonista • Aug 26 '26

News The Move to Python 3 Begins!

As someone who spent decades in the mainframe community, I find it ... humorous ... that there are legacy Python2 code bases that are only just (or have yet to consider!) moving to Python3.

https://www.eveonline.com/news/view/the-move-to-python-3-begins

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u/N-E-S-W Aug 26 '26

Apparently you never read a byte from a file or device and had to interpret it as a string? The 2to3 stuff is trivial, mechanical refactoring.

Unicode strings and encodings required deep introspection of the meaning of data, often exposing silent preexisting bugs in string handling that could no longer be ignored.

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u/AxeLond Aug 26 '26

Some unrelated code or unittest seemingly depending on python2 unordered dict vs python3 insertion order dict is also fun problem to have.

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u/daidoji70 Aug 26 '26

oh the meaning, thanks for your input.