import math, balloons
def calcVolume():
v = ''
for x in range( balloons.balloonsNumber() ):
v += 4 / 3 * math.pi * balloons.getRadius( x ) ** 3 / 1000
return v
w sensie robie to na stronie na ktorej mam zadania z informatyki i pokazuje mi:
Traceback (most recent call last):
File "lnu.py", line 193, in checkAnswer
ret = func(*args)
File "calcVolume.py", line 6, in calcVolume
v += 4 / 3 * math.pi * balloons.getRadius( x ) ** 3 / 1000
TypeError: can only concatenate str (not "float") to str