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Author SHA1 Message Date
wouter bolsterlee 3efb675dba Use ‘exclude list’ instead of ‘blacklist’ (#4297) 
This replaces all uses of ‘blacklist’ with ‘exclude list’. Benefits:

- It is racially neutral terminology; see e.g. [1]

- It makes the meaning more clear. In fact, with the popular Python
  autoformatter called ‘black’, also used by this project, files can be
  ‘blackened’ which is something completely different from them being on
  a blacklist.

[1] https://chromium.googlesource.com/chromium/src/+/master/styleguide/inclusive_code.md#racially-neutral
 2020-07-01 09:10:37 +02:00
wouter bolsterlee 83e955b52f Use correct return type annotation for BaseException.with_traceback (#4298) 
The return type of the BaseException.with_traceback() method [1] is not
specific enough. The return type is guaranteed to be of the same type as
‘self’, which is usually a subclass of BaseException.

In fact, .with_traceback() returns ‘self’:

    try:
        raise ValueError
    except Exception as exc:
        assert exc.with_traceback(None) is exc

Fix the annotation to reflect this using the self-type annotation
technique described in PEP484 [2], which is supported by (at least)
mypy [3].

[1] https://docs.python.org/3/library/exceptions.html#BaseException.with_traceback
[2] https://www.python.org/dev/peps/pep-0484/#annotating-instance-and-class-methods
[3] https://github.com/python/mypy/issues/1212
 2020-06-30 11:40:25 -07:00
wouter bolsterlee 824e94a933 Make 2-arg iter() retrun type match passed callable's return type (#3326) 
This is a continuation of #3291, which was the initial fix for #3201.

The 2-arg version of iter() turns a callable into an iterator. The
changes made in #3291 introduce an Any return type for both the
callable's return type and the iterator's type, while in reality the
return type of the function is always the same as the iterator's type.
 2019-10-09 08:44:41 +02:00
wouter bolsterlee afe665690c Add missing BaseException.__suppress_context__ attribute (#2876) 
See also PEP 415: https://www.python.org/dev/peps/pep-0415/

Fixes #2875.
 2019-03-16 22:16:01 +01:00