TypeError：“>”在“str”和“int”的实例之间不受支持 - Python

Question

I'm trying to save user inputs into a file but I keep getting a TypeError. How do I fix it

from passenger import *

file = open("passenger.txt", 'w')

continue_record = True
while continue_record:
    record = input("\nRecord passenger (y/n): ")
    if record == 'n':
        continue_record = False
    else:

        distance, name, passenger_type = input_passenger()

        total_fare = compute(distance)
        get_receipt = receipt(name,passenger_type, distance, total_fare)

        file.write(get_receipt)
        file.write("\n")
file.close()

This is my input_passenger function:

def input_passenger():
    global distance
    global passenger_name
    global passenger_type

    passenger_name = input("Enter your name: ")
    distance = float(input("Enter distance: "))
    passenger_type = input("Enter type of passenger: ")

    return passenger_name, distance, passenger_type #I tried returning them but it gives me this error

Error:

line 14, in <module>
    total_fare = compute(distance)

line 29, in compute
    if distance > 0:
TypeError: '>' not supported between instances of 'str' and 'int'

This is my code in compute function

def compute(distance):
    global fare
    fare = 0
    if distance > 0:
        fare += 3 * 50
        fare += (distance - 3) * 4.5
    else:
        fare = round(distance * 50, 2)

    return fare

I tried converting it, but it still the error

Answer 1

You are returning the elements in a different order of unpacking them.

return passenger_name, distance, passenger_type

You unpack as the following (note that distance is actually the passenger_name).

distance, name, passenger_type = input_passenger()

You want

name, distance, passenger_type = input_passenger()

But yes like what others have said you likely want to avoid globals whenever you can.