[FIXED] How do I clear positional arguments in my function(s) in Python?

Issue

There was a looping error with add, but now that I can add data to my txt file, there is this error using 'see' to list my data. Below is the erro:

TypeError:list_champs() takes 0 positional arguments but 1 was given.

I cannot see where I added a parameter unknowingly that doesn't need one in my current code.

# file = open("champs.txt", "w+")

FILENAME = "champs.txt"

def write_champs(champs):
    with open(FILENAME, "w") as file:
        for champ in champs:
            file.write(champ + "\n")

def read_champs():
    champs = []
    with open(FILENAME) as file:
        for line in file:
            line = line.replace("\n", "")
            champs.append(line)
    return champs

def list_champs():
    for i in range(len(champs)):
        champ = champs[i]
        print(str(i+1) + " - " + champs)
    print()

def add_champ(champs):
    champ = input("Champion: ")
    #year = input("Season:    ")
    #champ = []
    champs.append(champ)
    #champ.append(year)
    write_champs(champs)
    print(champ + " was added.\n")

def display_menu():
    print("Premier League Champions")
    print("++++++++++++++++++++++++")
    print("COMMANDS")
    print("see  - See the list of Champions")
    print("add  - Add a Champion to the list")
    print("exit - Exit program")
    print()

def main():
    display_menu()
    champs = read_champs()
    while True:
        command = input("Enter command: ")
        if command == "see":
            list_champs(champs)
        elif command == "add":
            add_champ(champs)
        elif command == "exit":
            print("Later!")
            break
        else:
            print("Input not valid. Try again.")

if __name__ == "__main__":
    main()

As always help is much appreciated!

Solution

You need to change your def list_champs to support arguments:

def list_champs(champs):
    for i in range(len(champs)):
        champ = champs[i]
        print(str(i+1) + " - " + champs)
    print()

Answered By - Robinson

Answer Checked By - Senaida (PHPFixing Volunteer)