def f1():

    return [[]]


def f2():
    return []

result = f1()
result2 = f2()

print(result)
print(result2)

if result is None:
    print("result is None")
else:
    print("result is not None")

if result2 is None:
    print("result2 is none")
else:
    print("result2 is not none")

if result:
    print("result is regarded not False")
else:
    print("result is regarded as false")

if result2:
    print("result2 is regarded not False")
else:
    print("result2 is regarded as false")

the result:

[[]]
[]
result is not None
result2 is not none
result is regarded not False
result2 is regarded as false
Categories: python

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