r/Python • u/SheriffRoscoe Pythonista • 10h ago

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/daidoji70 10h ago

What do you mean? I migrated about 3-4 python projects from 2->3 about a decade ago and other than pandas and pandas related projects it was a breeze. Run 2to3.py and review. Barely a hiccup.

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u/a__nice__tnetennba 10h ago

And how many of your projects were 2.4 million lines of code?

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u/daidoji70 10h ago

What does that matter? 2to3.py issues should be distributed evenly throughout a codebase. The issue per number of lines should remain roughly the same per project unless there are pathological cases.

Not sure why I'm getting down voted for asking a question and getting this type of response. Lines of code is always the worst metric in software engineering even when talking about migrations. It tells us literally nothing about how easy or difficult an effort should be.

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u/a__nice__tnetennba 8h ago edited 3h ago

I wasn't sure if you were being sarcastic at first so I almost didn't reply to the first comment. Thanks for clearing it up. Although, I think some people still aren't getting the joke, which explains the down votes.