Kshitiz Arya <aryakshiti...@gmail.com> added the comment:
This is a relatively simple example of how this will improve readability of the
code.
(This example is form Lib/json/encoder.py)
Original
-------------------------------------------------------------------------
if isinstance(value, str):
yield _encoder(value)
elif value is None:
yield 'null'
elif value is True:
yield 'true'
elif value is False:
yield 'false'
elif isinstance(value, int):
yield _intstr(value)
elif isinstance(value, float):
yield _floatstr(value)
else:
if isinstance(value, (list, tuple)):
chunks = _iterencode_list(value, _current_indent_level)
elif isinstance(value, dict):
chunks = _iterencode_dict(value, _current_indent_level)
else:
chunks = _iterencode(value, _current_indent_level)
yield from chunks
--------------------------------------------------------------------------
Suggested
--------------------------------------------------------------------------
match value:
case str():
yield _encoder(value)
case None:
yield 'null'
case True:
yield 'true'
case False:
yield 'false'
case int():
# see comment for int/float in _make_iterencode
yield _intstr(value)
case float():
# see comment for int/float in _make_iterencode
yield _floatstr(value)
case _:
match value:
case list()|tuple():
chunks = _iterencode_list(value, _current_indent_level)
case dict():
chunks = _iterencode_dict(value, _current_indent_level)
case _:
chunks = _iterencode(value, _current_indent_level)
yield from chunks
----------------------------------------------------------------------------
----------
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue44276>
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