23.01.20 17:20, Victor Stinner пише:
> * Removed collections aliases to ABC classes
Adding loud warning was one of largest compatibility breaking changes in
3.8, because many active projects treat warnings in tests as errors. I
had doubts about removing them. On one side, they were deprecated for a
very long time. On other side, most time it was silent deprecation, and
the removal will affect too much projects. I agree with deferring this
removal.
> * Remove "U" mode of open(): having to use io.open() just for Python 2
> makes the code uglier
io.open() (don't confuse with codecs.open(), which was recommended in
the past) has other advantages. Builtin open() has problems with threads
in Python 2.
* Removed tostring/fromstring methods in array.array and base64 modules
* Removed fractions.gcd() function (which is similar to math.gcd())
* Removed old plistlib API: 2.7 doesn't have the new API
As for other changes, they look minor, and I think they affect not much
code. In particular, plistlib is specific for macOS.
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