I'll try me best (but if this is unsatifactory, pydoc is your friend):
---functions - any defined name that performs an action, think of it as the "Executable" of your program
python
def foo(): pass
function foo does nothing---objects - really, any data in python, think of it as "hey it's a variable"
python
x = 1
x is an object of type int---arguments - anything passed to a function to help define what it does
python
exec("print")"print" is an argument of exec---operators - simple math functions
python
x = 9 + 4
the addtion operator is adding 9 and 4---expressions - a way to write code (this is no different than talking, you
express your self using a tone.
python
foo = [x for x in range(5)]
Vs:
python
foo = [0, 1, 2, 3, 4]
---libraries - a collection of funtions dealing with a specific area or custom data type
python
import os
make the os library available for use