POWERFUL ONE LINERS IN PYTHON

1. To Swap Numbers:

a,b=b,a

2. Reverse a String:

mystring[::-1]

3. String Palindrome:

mystring = mystring[::-1]

4. Factorial of a number:

fact = lambda n:[1,0] [n>1] or Faci(n-1)*n

5. Fibonacci sequence:

fib = lambda X: X if X<=1 else fib(X-1) + Fib(X-2)