(You forgot to separate the parts of my comments that you were quoting
from your responses. Any decent email program will do that for you
automatically, inserting "< " in front of each quoted line. Then you
just hit enter a couple of times to type the new stuff right after the
part you're quoting.)
On 04/07/2013 01:00 AM, Frank wrote:
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
So the user is the programmer. No end-user would be using IDLE to run a
program.
Why is the command invalid?
-Because the user need to type out a name after the "f"
But that wouldn't be an invalid command, but invalid data
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"
So fix the code, I just pointed out that the message was different. The
code says print "%s is already in the list" % name
Yet you say the message needs to be:
> John Cleese is already a friend
One or the other is incorrect.
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.
No, just the wrong filename. I assumed you were going to rename it
afterwards, tut apparently not.
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.
So if you call interact() in your program at the top-level, then a
non-programmer can run the program directly from the terminal window.
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...
You will also need to add an argument to the raw_input() to have it
produce the output specified.
--
DaveA
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