Misc/NEWS.d/next/Library/2021-04-12-09-57-37.bpo-43680.o1zEk_.rst


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The Python :func:`_pyio.open` function becomes a static method to behave as
:func:`io.open` built-in function: don't become a bound method when stored as a
class variable. It becomes possible since static methods are now callable in
Python 3.10. Moreover, :func:`_pyio.OpenWrapper` becomes a simple alias to
:func:`_pyio.open`.
Patch by Victor Stinner.