user_search.py users.txt

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def search_for_user(user_id):
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  # read all lines from the file
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  with open("users.txt") as f:
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    file_contents = f.read()
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​
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    # get a list of rows
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    users = file_contents.split("\n")
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​
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    # extract user info
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    for user in users:
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      id, first_name, last_name, ip_address = user.split("\t")
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      if id == user_id:
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        return id, first_name, last_name, ip_address
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​
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running = True
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while running:
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    id_to_search_for = input("Enter a user id (1-100):")
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    # search for the user from the file
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    if id_to_search_for.isnumeric():
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        id, first_name, last_name, ip_address = search_for_user(id_to_search_for)
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        print("user with ID " + id + " is:", first_name, last_name, ip_address)
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    # if the user doesn't enter a number, stop the program
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    else:
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      running = False
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​