Python Program to Iterate Over Dictionaries Using for Loop

 

Example 1: Access both key and value using items()

dt = {'a': 'juice', 'b': 'grill', 'c': 'corn'}

 

for key, value in dt.items():

    print(key, value)

Output

a juice

b grill

c corn

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Example 2: Access both key and value without using items()

dt = {'a': 'juice', 'b': 'grill', 'c': 'corn'}

 

for key in dt:

    print(key, dt[key])

Output

a juice

b grill

c corn

However, the more pythonic way is example 1.

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Example 3: Access both key and value using iteritems()

dt = {'a': 'juice', 'b': 'grill', 'c': 'corn'}

 

for key, value in dt.iteritems():

    print(key, value)

Output

a juice

b grill

c corn

It works for python 2 versions.

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Example 4: Return keys or values explicitly

dt = {'a': 'juice', 'b': 'grill', 'c': 'corn'}

 

for key in dt.keys():

    print(key)

 

for value in dt.values():

    print(value)

Output

a

b

c

juice

grill

corn