#!/usr/bin/python
# Filename : lister.py
import sys, pickle
global mylist
mylist = []
def takeinput():
# take input from user to select which function
try:
num = int(raw_input('--> '))
if num == 1:
printlist()
elif num == 2:
add()
elif num == 3:
delete()
elif num == 4:
save()
elif num == 5:
load()
elif num == 6:
quit()
else:
quit()
except ValueError:
quit()
def printlist():
# print mylist
print 'mylist is now:', mylist, '\n'
def add():
# add an item to mylist
s = str(raw_input('Enter the name of the object you want to add --> '))
mylist.append(s) # add the
del s
printlist()
def delete():
# delete an item from mylist
print # newline
i = 0
while i < len(mylist): # use while loop to assign 'itm' to the
for itm in mylist: # items in the list. Then, print the number of
print itm,'is',i # items and items in mylist.
i = i + 1 # the numbers of the items and items is printed.
print # newline
s = int(raw_input('Enter the number of the object you want to delete --> '))
del mylist[s] # delete the item using both 'del' function & indexing method
del s
printlist()
def save():
# save mylist
mylist_data = 'lister.data' # The name of the file
f = file(mylist_data, 'w') # Open for 'w'riting
pickle.dump(mylist, f) # dump/put the list into the file
f.close() # close
print 'Saved mylist :)'
def load():
# load mylist
mylist_data = 'lister.data'
f = file(mylist_data)
storedlist = pickle.load(f)
print 'Loaded mylist :)'
def quit():
# quit the program
print 'Bye! :) \n'
sys.exit()
# Script starts here
print '''\
Hi! this is a lister program.
Type:
1- print mylist
2- add an object to mylist
3- delete an object from mylist
4- save mylist
5- load mylist
6- quit\
'''
running = True
while running:
takeinput() # Always take input from user until he/she quits the program
