Why Doesn't Python Return Booleans
I have this small function that takes two integers a and b and checks if a is b raised to some exponent. This is the code. def is_power(a,b): if not a%b==0: return a%b
Solution 1:
You are ignoring the return value of the recursive call, add a return
there:
else:
a = a/b
return is_power(a,b)
Without the return
statement there, your function just ends and returns None
instead. The return value of the recursive call is otherwise ignored.
With the return
statement, your code works:
>>>defis_power(a,b):...ifnot a%b==0:...return a%b==0...elif a/b==1:...return a/b==1...else:... a = a/b...return is_power(a, b)...>>>print is_power(10, 3)
False
>>>print is_power(8, 2)
True
Solution 2:
You forgot to return on the last else clause.
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