pxrepreza at gmail
Mar 9, 2009, 10:48 PM
Post #1 of 2
(221 views)
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Hi all,
I'm having a little problem in my program Menu Interface.
Here is the code:
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# Improvement of lists-demolists.py **Includes a MENU interface*
menu_item = 0
list = []
# Program exits until 'menu_item = 9'
while menu_item != 9:
print '-----------------'
print '1. Print the list.'
print '2. Add a name to the list.'
print '3. Remove a name from the list.'
print '4. Change an item in the list.'
print '9. Quit'
menu_item = input('Pick an item from the menu: ')
# TO-DO for option '1'.
if menu_item == 1:
current = 0
if len(list) > 0:
while current < len(list):
print current,'. ',list[current]
current = current + 1
else:
print 'List is empty.'
# TO-DO for option '2'.
elif menu_item == 2:
name = raw_input('Type in a name to add: ')
list.append(name)
# TO-DO for option '3'.
elif menu_item == 3:
del_name = raw_input('What name would you like to remove: ')
if del_name in list:
item_number = list.index(del_name)
del list[item_number]
# The code above only removes the first occurance of
# the name. The code below from G removes all.
# while del_name in list:
# item_number = list.inder(del_name)
# del list[item_number]
else:
print del_name, 'was not found.'
# TO-DO for option '4'.
elif menu_item == 4:
old_name = raw_input('What name would you like to change: ')
if old_name in list:
item_number = list.index(old_name)
new_name = raw_input('What is the new name: ')
list[item_number] = new_name
else:
print old_name, ' was not found.'
print "Goodbye"
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Well the program runs, but my issue it's when I try to enter a letter
instead of a number (I do this to check if I will see the Menu regarding if
I enter a wrong character) but when I enter a character(string) I get this:
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Pick an item from the menu: f
Traceback (most recent call last):
File "lists-improve-demolists.py", line 14, in <module>
menu_item = input('Pick an item from the menu: ')
File "<string>", line 1, in <module>
NameError: name 'f' is not defined
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I've noticed that the 'menu_option; var' it's not a string so that's why I
see this error, but I tryed by doing str(menu_option) and it works, but when
I enter a digit 1, 2, 3, 4, 9 it won't take me to that particular option,
instead it shows the menu all over again and the only way I can exit the
program is by doing ctrl + C.
Any hint on how I can change the code in order for me to use the menu
regarding if is a string or an integer (menu_option)?
Thank You!
Paulo Repreza
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