Python:

I'm trying to save all of the inputs entered by the user in a text file using Python. I want to make sure all of the inputs that are entered stored in the file until I fully exit out of the program, in this case until I press to stop the list. I also need to check the input names and see if it matches any of the previous entry.

My problem with my program right now is that the text file only updates the latest name I inputted when I exit out of the code. I need my program to save all of those names in a list until the program is over because I have to make sure if any of those names are repeated. I will have to warn the user that the name already exists. I made a separate function for creating and writing text files from my inputs on my code below, but I also noticed I can implement it in the get_people() function. I'm not sure what the best strategy is to either create a new function for it or not. There is definitely something wrong with writing files.

The text file should have this format:

Taylor Selena Martha Karlie

Here is my code below:

def get_people(): print("List names or  to exit") while True: try: user_input = input("Name: ") if len(user_input) > 25: raise ValueError elif user_input == '': return None else: input_file = 'listofnames.txt' with open(input_file, 'w') as file: file.write(user_input + ' ') return user_input except ValueError: print("ValueError! ") # def name_in_file(user_input): # input_file = 'listofnames.txt' # with open(input_file, 'w') as file: # file.write(user_input + ' ') # return user_input def main(): while True: try: user_input = get_people() # name_in_file(user_input) if user_input == None: break except ValueError: print("ValueError! ") main()

Thank you so much!