You have made a function that dont get passed(and argument) and it dont return anything as your description say.

First the easy way with a build in(sum)
def sum_lst(my_list):
return...

http://docs.python.org/library/exceptions.html
http://python.about.com/od/pythonstandardlibrary/a/lib_exceptions.htm
Use python shell as postet on top.
>>> import exceptions
>>> dir(exceptions)...

What Is an Exception?

Python uses exception objects.
When it encounters an error, it raises an exception.
If such an exception object is not handled (or caught), the program
terminates with a...

Have make a better menu system.
Put all comment in doc string.

Look at exception handling for your function.
Try type a letter.

def getPints(pints):
'''The getPints(pints) function:'''
...

Is it not better to make one function like this to add 2 number.

def add_number():
n = raw_input('Enter number to add format (2+2)')
num1, num2 = n.split('+')
my_sum = int(num1) +...

Look at this here two way to work with function.
Maybe you get some idèe on how to solve your +*-/ with function and a menu.
One function i just return and do calulation in main.
They other...

Two classes with 1 attributt(variable) in each,is not a normal OO design.
Your program work,but for me this is not a good way to code.

Some problem.
Menu should come first so user now what this...

Tkinter is the build in gui(Graphical user interface) of python.
There are many other good gui toolkit like wxpython - PyQt -PyGTK.


No Tkinter or any other gui toolkit is to display our python...

The example is simple and you shoul try to understand it.
Break it down and ask question.

def get_data():
"""get the data from the user, from a file, or hard coded"""
mydata = [1, 2, 3,...

Maybe,but i wont speend any tïme at all on an outdatet module like graphics.py.
It was just made as an intro to graphic,you much forget this module if you want to make something ourself.

Look at...

You should not speend much time on outdate mouduls like graphics.py.
Think it was written in 2005 by John M. Zelle as and easy intro to graphics for beginner.

The only way to do this is to learn...

Do you think we can se your code based on output print screen?
If you want help you post your code or the part you think cause the problem.

You can use what ide editor you want, whish gui toolkit you use dos have little impact.

Pyscipter is good.
http://code.google.com/p/pyscripter/

I use komodo ide,and pyscripter for python 3.x...

Dictionary values are accessed by their key. To allow for high speed key searches, the keys are in a hash order. So a dictionary sorted alphabetically by it's keys would make no sense and would...

>>> import webbrowser
>>> dir(webbrowser)
['BackgroundBrowser', 'BaseBrowser', 'Elinks', 'Error', 'Galeon', 'GenericBrowser', 'Grail', 'Konqueror', 'Mozilla', 'Netscape', 'Opera', 'UnixBrowser',...

Kind off help whit some clear messages.
>>> we_dot_do_homework_if_no_effort_is_shown = 2
>>> 1 % we_dot_do_homework_if_no_effort_is_shown
1
>>> 2 % we_dot_do_homework_if_no_effort_is_shown
0...

Vegaseat has pretty much given you the answer.
You dont say that code dos not work and nothing more.
Then is not possibly to help you,post your code and then you say it will not work or try to...

If you what this result is better to iterate over the list and append the result to a new list.

L = [ 0 , 2, 1 , -1 , -1 , -1, -1 ]

new_list = []
for item in L:
if item >= 0:
...

Tkinter has change import name in python 3.
Put this first then tkinter import correct for python 2.x and 3.x
try:
# for Python2
import Tkinter as tk
except ImportError:
# for...

New style class python 2.2--> you should use class(object):
Old style pre python 2.2 class:

So object is a build in,let`s test it.
IDLE 2.6.2
>>> object
<type 'object'>
>>>

For more...

Yes as it should do,is should not be so hard to understand.
<= 10 means that less than 10 or equal to 10 it will add 1.50.
Then off course if you input is 10 it will add 1.50 and print 11.50.
< 10...

It`s not the best example of python class masterofpuppets.
You put in lot effort to help wish is fine.


Python is not java,it`s a lot better:cool:...

Yes,i should have think of that you need floating point number to get correct sum.
%.2f(give you 2 decimal float number)

is %.2f pounds" % (order + x)

order = input("Please enter the price of the order: ")
x = 1.50
if order < 10:
print "the total price including the delivery charge is %d pounds" % (order + x)
else:
print "The toal...

>>> #Is rounds greater than player_point or cpu_point
>>> #It will print Victory
>>> #Test
>>> rounds = 5
>>> player_point = 4
>>> cpu_point = 3
>>> while rounds > player_point or cpu_point:...

Yes good.
Or shorter.
a = [raw_input('>')for x in range(5)]

A for loop is easier for this.


for i in range(4):
for item in ['a,b,c,d']:
item = raw_input("something: ")

something: 7
something: 8
something: 9

Next time if you post here try to post some code.
That will show that you but some effort in to it.

With homework we will not just post finish code.

Here is one soultion,as extra i put number...

One more,now start to think how to put this together.

>>> count = 0
>>> a = 55
>>> if a % 2 == 1:
count += 1
print 'odd', count

else:
print 'even'

You should try to post some code yourself.

Can give you some tips.
>>> for i in range(0,7):
a = random.randint(0,100)
print a

79
21
69

>>> def is_palindrome(s):
... return s.lower() == s[::-1].lower()
...
>>> is_palindrome('test')
False
>>> is_palindrome('racecar')
True
>>> is_palindrome('RACECAR')
True

Lets break it down.

IDLE 2.6.2
>>> a = ['Mary', 'had', 'a', 'little', 'lamb']
>>> for i in a:
print i

Mary
had
a

Du you mean the Attached Thumbnails?
Thats just screenshot capture with free program jing.
http://www.jingproject.com/

Doc string and help is ok to know about to.
>>> l = []
>>> type(l)
<type 'list'>
>>> dir(l)
['__add__', '__class__', '__contains__', '__delattr__', '__delitem__', '__delslice__', '__doc__',...

Think maybe you are confused about calling a function and calling a method.

def my_func(name, greeting = 'Hello'):
print '%s, %s' % (greeting, name)

#Call a function
my_func('tom') ...

Always use 4 space for indent.
Read PEP 8.
http://www.python.org/dev/peps/pep-0008/

Tutorial look like it come from sthurlow
http://www.sthurlow.com/python/lesson05/

And some strange code...

PyQt support python 3.x
http://www.riverbankcomputing.co.uk/software/pyqt/intro

This post has many PyQt example.
http://www.daniweb.com/forums/thread191210.html
There are also example of new...

Or if you stay with raw_input,you can convert to integer later in the function.
def add(a,b):
print a, '+', b, '=', int(a) + int(b)
#print '%s + %s = %d ' % (a, b, int(a)+int(b)) #...

Look like cx-freeze has come out with a version for python 3.
http://cx-freeze.sourceforge.net/

Or just use python 2.x and python 3., there is no point just to use python 3.x for now.

I will...

Hi here are som changes.
Done some work on this,i was thinking making somthing simelar as this for fun.
So helping you a little is no problem,set my self as co-developer in about box if you dont...