print

print 'Hello ' + 'world'

print a

Get input

raw_input

 name= raw_input('type in name')
Make an integer (whole number) int(a)
Make a string (text) str(a)
For loop


While loop
To end a loop early break
If else

Else if

elif
Logical expressions in if statements
x^2 x squared
Incrementing count +=1

modulus

a % b

 the remainder when a is divided by b
random number between 1 and 20

import random

number=random.randint(1,20)
import a library (eg turtle) from turtle import *
Length of a string len()
Get a single character eg the 5th char mystring[4]
Get the last character mystring[-1]
Get a piece of a string mystring[6:9]
Get an exact copy of a string mystring[:]
Get the first 5 chars of a string mystring[:5]

Change to upper/lower case

 

mystring.upper()

mystring.lower()
First or last letter alphabetically in a string

min(mystring)

max(mystring)
Other string commands
List of built in functions http://docs.python.org/library/functions.html