'float'對象不可迭代？

Question

我想彙總總降雨量以英寸顯示總數，但是當我運行代碼時，我得到一個TypeError說「'浮動'對象不可迭代」。任何想法我做錯了什麼？

months = 12 

def main(): 

    rain = get_rain() 

    total = get_total(rain) 

    avg = total/len(rain) 

    low = min(rain) 

    high = max(rain) 

    print('The total rainfall in inches for the year is: ', format(total, ',.2f')) 
    print() 
    print('The average monthly rainfall this year was: ', format(avg, ',.2f')) 
    print() 
    print('The lowest rainfall in inches this year was: ', format(low, ',.2f')) 
    print() 
    print('The highest rainfall in inches this year was: ', format(high, ',.2f')) 
    print() 

def get_rain(): 

    rain_in = [] 

    print('Enter the amount of rainfall in inches for each month of the year.') 
    print('------------------------------------------------------') 

    for index in range(months): 
      print('Enter the total rainfall in inches for month #', index + 1, ': ', sep='', end='') 
      rain_inches = float(input()) 

      rain_in.append(rain_inches) 

    return rain_inches 

def get_total(rain_in_list): 

      total = 0.0 

      for num in rain_in_list: 
       total += num 

      return total 

main() 

回溯：

Traceback (most recent call last): 
    File "C:/Users/Robert Rodriguez/Desktop/fall 2013-2014/Intro-python/python6/exercise8-3.py", line 50, in <module> 
    main() 
    File "C:/Users/Robert Rodriguez/Desktop/fall 2013-2014/Intro-python/python6/exercise8-3.py", line 9, in main 
    total = get_total(rain) 
    File "C:/Users/Robert Rodriguez/Desktop/fall 2013-2014/Intro-python/python6/exercise8-3.py", line 45, in get_total 
    for num in rain_in_list: 
TypeError: 'float' object is not iterable 

甚至有點在正確的方向，將有助於推的。我覺得我正處於解決這個問題的邊緣。

Answer 1

在get_rain返回

return rain_inches #float 

，而不是

return rain_in #list