I have had plenty of instances where destructuring a mapping would have be
convenient. Relating to iterable destructuring, I would expect the syntax
to be of the form "variable: key". I also think the curly-braces make it
harder to visually parse what's going on. So I might suggest something a
little like:
objkey = object()
mydict = {'a': 1, 'b': 2, 'c': 3, 4: 5, None: 6, objkey: 7}
var1: 'a', var2: 4, var3: None, var4: objkey, **rest = mydict
assert var1 == 1
assert var2 == 5
assert var3 == 6
assert var4 == 7
assert rest == {'b': 2, 'c': 3}
On Thu, May 24, 2018 at 9:37 AM Serhiy Storchaka
24.05.18 18:46, Neil Girdhar пише:
p = parameters.pop('some_parameter') q = parameters.pop('some_other_parameter') if parameters: raise ValueError
parameters is a Mapping subclass and I don't want to destroy it
Oh, right. It works if parameters is a var-keyword parameter.
def __init__(self, some_kwarg, some_other_kwargs, **parameters):
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