as per the title, how to find list length of sublist that made from list and int. For example, give a list
ListNo=[[6,2,5],[3,10],4,1]
it should return LengthSubList 3,2,1,1.
I make the following code,
LengthSubList=[len(x) for x in ListNo]
But, compiler give the following error
object of type 'int' has no len()
May I know what I do wrong?
Thanks in advance
Check if it's a list before you do len():
ListNo = [[6,2,5],[3,10],4,1]
print([len(x) if isinstance(x, list) else 1 for x in ListNo])
# [3, 2, 1, 1]
What you got wrong is you cannot do len(4) and len(1), simply because it would return a TypeError - object of type 'int' has no len().
Your code will call len(4) and len(1) in your list comprehension which throws the self explanatory error. Try this:
LengthSubList=[len(x) if type(x) == list else 1 for x in ListNo]
