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python dictionary multiple same keys

No, each key in a dictionary should be unique. 
You can’t have two keys with the same value. 
Attempting to use the same key again will just overwrite the previous value stored. 
If a key needs to store multiple values, 
then the value associated with the key should be a list or another dictionary.
Sourece: https://discuss.codecademy.com/t/can-a-dictionary-have-two-keys-of-the-same-value/351465
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check multiple keys in python dict

if all (k in foo for k in ("foo","bar")):
	pass
Comment

python check if two dictionaries have same keys

d_1.keys() == d_2.keys()
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