"Ben Millane" <b...@richmondtravelsolihull.co.uk> wrote
My problem is, that although I have the program working how I want it
to work in general. I still have an issue with the user input section.
If my user inputs any of the options from the menu, the program works
as it should. But say if the user accidentally pressed enter with no
option entered the program ends with an error message,
or if they put in the incorrect number or a letter, it returns an error.
Thats what you told it to do!
Work through the logic of all those if/elifs and see where a blank
entry will go. Add the logic to catch it there.
It will help if you use functions to reduce the amount of code between
the if/elifs. That will make the code much more readable.
Another option is then to use a dictionary to call the appropriate
function, and if the key is not in the dictionary respond appropriately.
Also you xccould move the "make a new selection bit out of
the individual sections to the end of the while loop. It saves
repetition (The DRY principle - Don't Repeat Yourself) and
again keeps the code readable.
You will see a short example of what you are doing in my tutorial
under "Branching". Look at how I handled the invalid
input situation in the "putting it all together" section for some ideas.
--
Alan Gauld
Author of the Learn to Program web site
http://www.alan-g.me.uk/
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