python - "input expected at most 1 arguments, got 2" -

i'm trying create function prompt user give radius each circle have designated having, however, can't seem figure out how display without running typeerror: input expected @ 1 arguments, got 2

def getradius():     num_circles = eval(input("enter number of circles: "))     in range(num_circles):         radius = eval(input("enter radius of circle #", + 1))  getradius() 

that's because gave second argument. can give string want see displayed. isn't free-form print statement. try this:

radius = eval(input("enter radius of circle #" + str(i + 1))) 

this gives single string value send input.

also, very careful using eval.