bpo-36048: Use __index__() instead of __int__() for implicit conversion if available. by serhiy-storchaka · Pull Request #11952

bpo-36048: Use __index__() instead of __int__() for implicit conversion if available. by serhiy-storchaka · Pull Request #11952 · python/cpython

…on if available.

Deprecate using the __int__() method in implicit conversions of Python
numbers to C integers.

tacaswell added a commit to tacaswell/matplotlib that referenced this pull request

Sep 1, 2019

This is a workaround to https://bugs.python.org/issue37980

- np.bool raises a warning if you try to use it as an index (by
  warning in its `__index__` method
- in py38 python/cpython#11952 python changes
  the code path used to convert `np.bool_` -> int for as it is used in
  `sorted` so it now goes through the `__index__` code path
- this causes a bunch of spurious warnings to come out of Matplotlib.

tacaswell added a commit to tacaswell/matplotlib that referenced this pull request

Sep 2, 2019

This is a workaround to https://bugs.python.org/issue37980

- np.bool raises a warning if you try to use it as an index (by
  warning in its `__index__` method
- in py38 python/cpython#11952 python changes
  the code path used to convert `np.bool_` -> int for as it is used in
  `sorted` so it now goes through the `__index__` code path
- this causes a bunch of spurious warnings to come out of Matplotlib.

tacaswell added a commit to tacaswell/matplotlib that referenced this pull request

Sep 4, 2019

This is a workaround to https://bugs.python.org/issue37980

- np.bool raises a warning if you try to use it as an index (by
  warning in its `__index__` method
- in py38 python/cpython#11952 python changes
  the code path used to convert `np.bool_` -> int for as it is used in
  `sorted` so it now goes through the `__index__` code path
- this causes a bunch of spurious warnings to come out of Matplotlib.

chrisnovakovic added a commit to chrisnovakovic/cpython that referenced this pull request

Mar 17, 2023

…ted as integers

Prior to pythongh-11952, several standard library functions that expected
integer arguments would nevertheless silently accept (and truncate)
non-integer arguments. This behaviour was deprecated in pythongh-11952, and
removed in pythongh-15636.

However, it may be possible to interpret some non-integer numeric types
(such as `decimal.Decimal`s) as integers if they contain no fractional
part. Implement `__index__` for `decimal.Decimal`, returning an integer
representation of the value if it does not contain a fractional part or
raising a `TypeError` if it does.