one-line for loop python

[thing for thing in list_of_things] 

Here is what the above code is Doing:
1. We create a list of things.
2. We create a list of things that we want to keep.
3. We create a list of things that we want to remove.
4. We create a list of things that we want to keep and a list of things that we want to remove.
5. We create a list of things that we want to keep and a list of things that we want to remove and we combine them.
6. We create a list of things that we want to keep and a list of things that we want to remove and we combine them and we sort them.
7. We create a list of things that we want to keep and a list of things that we want to remove and we combine them and we sort them and we print them.