Basics of Python programming

Python Programming basic data types

• None value

• Integral type

• Floating point Type

• Boolean type
  True,false

• String

• Tuple tuples
  (), ordered, not variable
  Cases:
  t = (1,)
  t = (1, ' Hello ', 1.0,true)

• Lists List
  [], ordered, variable
  Cases:
  L = [1, ' Hello ', 1.0,true]

• Dictionary Dict
  {}, key-value pairs, unordered
  Cases:
  D = {: ' A ', 48:0, ' a ': $, ' Hello ': ' World '}

Operator Math operator

• +

• -

• *

• /except

• Divisible

• % modulus

• * * Index

Comparison operators

• ==

• !=

• >

• <

• >=

• <=

Boolean operator

• And,or

• Not

Variable scope

• Local variables
  Global statement: Modifying a globally variable within a function

• Global variables

Comment Line Comment

# single Comment

Multi-line comments

"' Multiple lines
Note ""

Special Notes

#!python3
Must be the first line of the file and must be #! Beginning

Control flow Condition Branch

• If statement

• Else statement

• elif statements

Cycle

• While statement

• For Loop and range () functions

• Break statement

• Continue statements

Exception handling

Try
Except XXX:
Else

function function definition

• def statement

• Return statement

Common functions

• Print ()

• Input ()

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Basics of Python programming