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# test calling a function with keywords given by **dict
def f(a, b):
print(a, b)
f(1, **{'b':2})
f(1, **{'b':val for val in range(1)})
try:
f(1, **{len:2})
except TypeError:
print('TypeError')
# test calling a method with keywords given by **dict
class A:
def f(self, a, b):
print(a, b)
a = A()
a.f(1, **{'b':2})
a.f(1, **{'b':val for val in range(1)})
# test for duplicate keys in **kwargs not allowed
def f1(**kwargs):
print(kwargs)
try:
f1(**{'a': 1, 'b': 2}, **{'b': 3, 'c': 4})
except TypeError:
print('TypeError')
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