## Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

### Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

# How do I reverse the order of numbers?

I've created a variable that takes the right numbers that I need reversed, but I haven't been taught any commands on how to reverse the order. I know I can .sort(), but that will sort from low to high. Is there a command to sort from high to low?

slices.py
```def first_4(iterable):
return iterable[:4]

def first_and_last_4(iterable):
return iterable[:4] + iterable[-4:]

def odds(iterable):
return iterable[1::2]

def reverse_evens(iterable):
iterable_1 = iterable[1::2]

return
```

In Python, using a negative number for the "step" argument on the list slicing syntax will tell python to start at the last index and work backwards. For example, say I have a list `letters = ['a', 'b', 'c']` and want to print it out backwards.
I can do `letters[::-1]` and I will get `['c', 'b', 'a']`.