Python - list comprehension, lambda funksionet, filter, map, reduce, regular expr., OOP (pjesa 1)

[x] List comprehensions
[x] Lambda functions
[x] Lambda with one arg
[x] Lambda with multiple args
[x] High-order functions (with lambda)
[x] Filter, Map, and Reduce
[x] Filter
[x] Map
[x] Reduce (using functools)
[x] Regular expressions
[x] "re" module
[x] findall()
[x] search()
[x] split()
[x] sub()
[x] Object-oriented programming
[x] Class
[x] Empty class
[x] Class properties (instance properties)
[x] Class methods (instance methods)
[x] self
[x] Instantiating objects
[x] Checking identity