How to remove all 0 from a dictionary in Python?

Dictionary is a prominent data structure in python to store the key and value pair data. Every key in the dictionary has its associated value. That value can be anything legit data structure in python.

Sometimes we need to remove all the dictionary key-value pair having value equals to zero.

We can loop over the dictionary value and can put the check if the value is not equal to zero.

There is also the easiest way to do this using python compression technique.

{x:y for x,y in dic.items() if y!=0}

You can run the complete program here that remove all 0 from a dictionary in Python.

dicSample = {'a': 2, 'b': 0, 'c': 4, 'd': 4, 'e': 0}
dicSample2 = {x:y for x,y in dic.items() if y!=0}
print dicSample2

Output:

{'a': 2, 'c': 4, 'd': 4}

This comprehension runs a loop over the key-value pair of a dictionary item. There is ‘if’ condition that excludes all the dictionary items having value equals to zero.

Note: Comprehension is a generic technique where you can put any if condition as per the requirement. It filters the dictionary item as per the condition.

Isn’t it so easy?

For sure, Python is known for its simplicity.

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