Why is "None" an output?

Question

def max(x, y):
if x >y:
return x
elif x==y:
print("Equal")
else:
return y
print(max(7,7))

Answer 1

because instead of returning "Equal" you print it in the function... other statements are not executed since x==y, so value implicitly returned by function is None...

the output is:

Equal
None

Answer 2

Kristóf Pintér ,

additional to the comments given by visph, you should NOT use " max" as a name for a user defined function. max() is a build-in function of python. using the same name for your own function can lead to trouble and may create problems that are not easy to catch.