I am writing a car rental program on python. In this function I am trying to modify car details which are added in the details.txt file but I am getting an error "if acc[0] == var[0]:TypeError:'NoneType' object is not subscriptable" how do I fix this error ?
def modifying(): global acc exist = False mod_file = open("details.txt") count = 0 for s in mod_file: var = s.split(",") # spilt the data into list var[2] = var[2].strip() if acc[0] == var[0]: exist = True break count += 1 mod_file.close() if exist != True: print("!!! Can NOT Find The Data !!!") elif exist == True: s_list = [] mod_file = open("details.txt", "r") for s in mod_file: s = s.strip() s_list.append(s) mod_file.close choice = "Y" while choice == "Y": print("\n===============================") print("---------- MODIFY Cars ----------") print("---------------------------------") print("Select the details you wish to modify") print("1. Type") print("2. Manufactured Year") print("3. details of the car") print("4. car code") print("5. Daily price rate ( USD $ )") print("6. back") while True: try: c = int(input("please select a number (1 - 5): ")) modify = ["Type", "Manufactured Year", "details of the car", "car code", "Daily price rate ( USD $ )"] if c > 0 and c < 6: new = input("\nType the New " + modify[c - 1] + ":") var[c - 1] = new temp = ",".join(var) s_list[count] = temp mod_file = open("details.txt", "w") mod_file.write("") mod_file.close() count_file = 0 for s in range(len(s_list)): mod_file = open("details.txt", "r") for counting in mod_file: count_file += 1 mod_file.close() mod_file = open("details.txt", "a") if count_file == 0: mod_file.write(s_list[s]) else: mod_file.write("\n") mod_file.write(s_list[s]) mod_file.close() print("\nDetails UPDATED") be_exit = input("\nDo you want to modify again? (Y/N): ").upper() if be_exit == "y": choice = "y" else: modifying(acc) elif c == 6: modifying(acc) else: print("\n!!! Incorrect Input !!!\n") continue except: print("\n!! NOT a Number !!!\n") continue modifying()
buran write Aug-05-2021, 03:31 PM:
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Please, use proper tags when post code, traceback, output, etc. This time I have added tags for you.
See BBcode help for more info.
Please, post the entire traceback that you get. We need to see the whole thing. Do not just give us the last line.
Take a time to read What to include in a post