Python Zastąp ciąg na Int na liście

>>> l= ['X','X',52,39,81,12,'X',62,94]
>>>
>>> l = list(map(lambda x:0 if x=="X" else x,l))
>>> l
[0, 0, 52, 39, 81, 12, 0, 62, 94]
Clumsy Capuchin