如何訪問此列表的內容？ （Python）

Question

我需要訪問data_list中get_data_list函數中新增的信息，第二個函數是get_month_averages，但是當我嘗試這樣做時，它說data_list未定義。我該怎麼做呢？

import csv 

def get_data_list(data_file): 
    data_file = open("table.csv", "r") 
    data_list = [] 
    for line_str in data_file: 
     data_list.append(line_str.strip().split(',')) 
    return data_list 

def get_month_averages(data_list): 
    date_list = [] 
    vol_list = [] 
    adjclos_list = [] 
    for row in data_list: 
     date_list.append(row[0]) 
     vol_list.append(row[5]) 
     adjclos_list.append(row[6]) 
     all_list = [date_list, vol_list, adjclos_list] 
    return all_list 
print (get_month_averages(data_list)) 

Answer 1

這一個工程：

import csv 

def get_data_list(): 
    data_file = open("table.csv", "r") 
    data_list = [] 
    for line_str in data_file: 
     data_list.append(line_str.strip().split(',')) 
    return data_list 

def get_month_averages(data_list): 
    date_list = [] 
    vol_list = [] 
    adjclos_list = [] 
    for row in data_list: 
     date_list.append(row[0]) 
     vol_list.append(row[5]) 
     adjclos_list.append(row[6]) 
     all_list = [date_list, vol_list, adjclos_list] 
    return all_list 

dList = get_data_list() 
mAvg = get_month_averages(dList) 
print mAvg