On 2020-03-01 02:08, Christman, Roger Graydon wrote:
DL Neil asked:
How does one code a function/method signature so that
it will accept either a set of key-value pairs,
or the same data enclosed as a dict, as part of
a general-case and polymorphic solution?
Will this do for you?
def any_as_dict(*args, **kwargs):
if len(args) == 0:
my_dict = kwargs
elif type(args[0]) == type(dict()):
my_dict = args[0]
else:
my_dict = dict(args)
print(type(my_dict),my_dict)
any_as_dict(a=1,b=2)
<class 'dict'> {'a': 1, 'b': 2}
any_as_dict({'a':1, 'b':2})
<class 'dict'> {'a': 1, 'b': 2}
any_as_dict([('a',1), ('b',2)])
<class 'dict'> {('a', 1): ('b', 2)}
any_as_dict({('a',1), ('b',2)})
<class 'dict'> {('b', 2): ('a', 1)}
This seems to address your apparent definition of
"key-value pairs" in the form of a=1, b=2
and my interpretation as key-value tuples,
either in a list, or set, or presumably any
iterable collection, in addition to taking an
actual dictionary.
That function can be simplified:
def any_as_dict(*args, **kwargs):
return dict(args[0]) if args else kwargs
any_as_dict(a=1,b=2)
{'a': 1, 'b': 2}
any_as_dict({'a':1, 'b':2})
{'a': 1, 'b': 2}
any_as_dict([('a',1), ('b',2)])
{'a': 1, 'b': 2}
any_as_dict({('a',1), ('b',2)})
{'b': 2, 'a': 1}
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