Does update allow integers as keyword arguments?-CodePudding

I know I can update a dictionary using other means. I'm curios about this specific way of updating a dictionary.

Update works (see below)

dict1 = {1: 'cat', 2: 'dog'}
dict1.update(k3 = 'blabla', k4 = 'blabla')
print(dict1)

Update does not work (see below)

dict1 = {1: 'cat', 2: 'dog'}
dict1.update(3 = 'blabla', 4 = 'blabla')
print(dict1)

Can I update a dictionary using key value pairs in this way when the key is an integer?

CodePudding user response：

Not exactly like this. Keyword arguments must be strings. Interestingly enough, you are able to include keyword arguments that aren't legal identifiers; for example, you can do dict1.update(**{"-": 1}), but you cannot do dict1.update(**{1: 2}).

You can do dict1.update({1: 2, 3: 4}) though. Try it online!