What is the easiest way to detect if a list contains only empty arrays?

Question

What is the easiest way to check a list of arrays to see if the arrays they contain are all empty?

For example, this is what the arrays look like and the following output is what I would expect:

a = [[],[]] ==> True
b = [["x"], ["y"], []] ==> False

Asked By: kaan46

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Answer 1

Presuming that you know that the list only contains other lists (which do not themselves contain lists), this is one way:

>>> not any(a)
True
>>> not any(b)
False

Answered By: sj95126

Answer 2

Use any :

print(not any(a))
print(not any(b))

output:

True
False

Answered By: SomeDude

Answer 3

This can work:

for i in a:
    if len(str(i))>0:
        print("With Something")
    else:
        print("empty")

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