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Python: Count number of items in a dictionary value that is a list

Python dictionary: Exercise-34 with Solution

Write a Python program to count number of items in a dictionary value that is a list.

Sample Solution:-

Python Code:

dict =  {'Alex': ['subj1', 'subj2', 'subj3'], 'David': ['subj1', 'subj2']}
ctr = sum(map(len, dict.values()))
print(ctr)

Sample Output:

5

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Python Dictionary: Count number of items in a dictionary value that is a list.

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Free up Memory:

  • Manual garbage collection can be performed on timely or event based mechanism.
import gc
collected_objects = gc.collect()