Biography link exchange

[Reloisback]

`from instagrapi import Client
import time
from instagrapi.types import Account, User

def read_credentials(file_path):
credentials = []
with open(file_path, 'r') as file:
lines = file.readlines()
for line in lines:
username, password = line.strip().split(':')
credentials.append((username, password))
return credentials

def main():
credentials = read_credentials('user_credentials.txt')

for username, password in credentials:
    print(f"Logging in: {username}")

    try:
        cl = Client()
        cl.login(username, password)

        current_external_url = cl.account_info().external_url
        print(f"Current Profile Link: {current_external_url}")

        new_external_url = input("What is your new profile link? ")

        # User confirmation
        confirmation = input(f"Are you sure? (Y/N): ")
        if confirmation.lower() == 'y':
            cl.account_edit(external_url=new_external_url)

            # Wait until the update is complete
            updated_external_url = current_external_url
            while updated_external_url == current_external_url:
                time.sleep(10)  # Waiting time can be increased
                updated_external_url = cl.account_info().external_url

            print(f"Updated Profile Link (Verification): {updated_external_url}")

            # Logout
            cl.logout()
            print("Session successfully closed.")
        else:
            print("Update canceled.")

    except Exception as e:
        print(f"An error occurred: {e}")

if name == "main":
main()
`

I cannot change links, even if I do, for example, if there is 1 link in the profile, it adds it as a 2nd link and thus there are 2 links in the profile.
I tried many methods but I couldn't succeed. What I want is to delete all the links in the profile if they exist before adding the link.