What does empty quotation marks('') mean?

Question

When I run the code:

def test(string):
    return '' in string
test("wolf")

It returns True . What does '' mean? I previously thought it meant nothing, but am now unsure. If it was nothing/ None / Null then why does this expression return True ?

Answer 1

The return expression (in this case) returns whether or not a string, int, float, etc. is in your variable. In this case, your string is not empty because '' simply means your answer has (or is) a string.

In other words, '' does not equal None .

print('' == None)
-> False