Now you've saved the data in a different file. How does the next run of the program find it?
What user? In what environment can a user enter function calls into your code? -The user will call the function out from IDLE Why is the command invalid? -Because the user need to type out a name after the "f" That's not the way the message is worded in the code - because if user type in " a John Cleese, Cheese Shop, 5552233, 5 May" it mean it would takes four arguments (comma separated) with information about a person and adds that person to my "friends.csv". An error message is printed if that person is already a friend. Because the name "John Cleese" is already in my friends.csv that why it will prompt out "John Cleese is already a friend" In this function and in save_friends, there is no return value, so not clear what you mean by 'result' e ends the interaction and, if the friends information has been updated, the information is saved to the friends.csv , i think i used the wrong function for this. The question I'm told to work on: interact() is the top-level function that de nes the text-base user interface as described in the introduction. Here is an example of what is expected from your program. The input is everything after Command: on a line (and the initial friends.csv). Every- thing else is output. Your output should be exactly the same as below for the given input. interact() Friends File: friends.csv Command: f John Cleese John Cleese: Ministry of Silly Walks, 5555421, 27 October Command: f Michael Palin Unknown friend Michael Palin Command: f Invalid Command: f Command: a Michael Palin Invalid Command: a Michael Palin Command: a John Cleese, Cheese Shop, 5552233, 5 May John Cleese is already a friend Command: a Michael Palin, Cheese Shop, 5552233, 5 May Command: f Michael Palin Michael Palin: Cheese Shop, 5552233, 5 May Command: e Saving changes... Exiting... -- http://mail.python.org/mailman/listinfo/python-list
