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bpo-37116: Use PEP 570 syntax for positional-only parameters. (GH-13700)

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Serhiy Storchaka 2019-06-01 11:00:15 +03:00 • committed by GitHub
parent 4a686504eb
commit 2085bd0877
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34 changed files with 126 additions and 261 deletions
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16
Lib/functools.py
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@ -273,15 +273,9 @@ class partial:
__slots__ = "func", "args", "keywords", "__dict__", "__weakref__"
def __new__(*args, **keywords):
if not args:
raise TypeError("descriptor '__new__' of partial needs an argument")
if len(args) < 2:
raise TypeError("type 'partial' takes at least one argument")
cls, func, *args = args
def __new__(cls, func, /, *args, **keywords):
if not callable(func):
raise TypeError("the first argument must be callable")
args = tuple(args)
if hasattr(func, "func"):
args = func.args + args
@ -295,10 +289,7 @@ class partial:
self.keywords = keywords
return self
def __call__(*args, **keywords):
if not args:
raise TypeError("descriptor '__call__' of partial needs an argument")
self, *args = args
def __call__(self, /, *args, **keywords):
keywords = {**self.keywords, **keywords}
return self.func(*self.args, *args, **keywords)
@ -402,8 +393,7 @@ class partialmethod(object):
keywords=keywords)
def _make_unbound_method(self):
def _method(*args, **keywords):
cls_or_self, *args = args
def _method(cls_or_self, /, *args, **keywords):
keywords = {**self.keywords, **keywords}
return self.func(cls_or_self, *self.args, *args, **keywords)
_method.__isabstractmethod__ = self.__isabstractmethod__