Which of the following statements create a dictionary?d = {}d = {“john”:40, “peter”:45}d = {40:”john”, 45:”peter”}All of the mentione
Question
Which of the following statements create a dictionary?
d = {}
d = {"john": 40, "peter": 45}
d = {40: "john", 45: "peter"}
All of the mentioned options?
Solution
All of the mentioned statements create a dictionary in Python.
d = {}
creates an empty dictionary.d = {"john":40, "peter":45}
creates a dictionary with two key-value pairs, where "john" and "peter" are the keys and 40 and 45 are their respective values.d = {40:"john", 45:"peter"}
also creates a dictionary with two key-value pairs, but here 40 and 45 are the keys and "john" and "peter" are their respective values.
In Python, dictionaries are created by placing a comma-separated list of key:value pairs within braces {}
, where key and value express an association between the two.
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