Python: Passing Dictionary as Arguments to Function

Situatie

A dictionary in Python is a collection of data which is unordered and mutable. Unlike, numeric indices used by lists, a dictionary uses the key as an index for a specific value. It can be used to store unrelated data types but data that is related as a real-world entity. The keys themselves are employed for using a specific value.

Solutie

Pasi de urmat

In Python, everything is an object, so the dictionary can be passed as an argument to a function like other variables are passed.

# Python program to demonstrate

# passing dictionary as argument

# A function that takes dictionary

# as an argument

def func(d):

for key in d:

print(“key:”, key, “Value:”, d[key])

# Driver’s code

D = {‘a’:1, ‘b’:2, ‘c’:3}

func(D)

Output:

key: b Value: 2
key: a Value: 1
key: c Value: 3

Passing Dictionary as kwargs

“kwargs” stands for keyword arguments. It is used for passing advanced data objects like dictionaries to a function because in such functions one doesn’t have a clue about the number of arguments, hence data passed is be dealt properly by adding “**” to the passing type.

# Python program to demonstrate

# passing dictionary as kwargs

def display(**name):

print (name[“fname”]+” “+name[“mname”]+” “+name[“lname”])

def main():

# passing dictionary key-value

# pair as arguments

display(fname =”John”,

mname =”F.”,

lname =”Kennedy”)

# Driver’s code

main()

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