Question

How to count an item in all sublists of a list in Python

Answer 1

def count_sublists_item(lst, ch): 
    return sum(ch in item for item in lst) 

lst = (['x', 'y'], ['b', 'y', 'w'], ['p', 'o', 's', 'm'], ['y'])  
ch = 'y'
print(count_sublists_item(lst, ch))



'''
run:

3

'''

 

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