1.1. Python Data Types

• Introduction to Python Data Types
  • Number
    1. Integers
       • E.g. Whole numbers: 11
    2. Floating Point
       • E.g. Numbers with a decimal point: 1.12
    3. Modulo or "Mod" Operators
       • To return the remainder:

In: 7%4

Out: 3

• The power of value:

In: 2 ** 3

Out: 8

• Strings
  1. The ordered sequence of characters: “hello”, “2000”
  2. Indexing and slicing to grab sub-section of the string
     • Indexing notation uses [ ] notation after the string (or variable assigned the string)
       • Allow to grab a single character from the string

mystring = "Hello World"

mystring[-2]

Out: l

• Slicing allows to grab a subsection of multiple characters, a “slice” of the string
  • Has the following syntax: [start:stop:step]
  • Start is a numerical index for the slice start
  • Stop is the index you will go up to
  • Step is the size of the “jump” you take

mystring = "abcdefghijk"

mystring[2:7:2]

Out: 'ceg'

• Booleans
  1. Logical value indicating True or False
  2. Examples:
     • 2 > 3 is False
     • 3 <= 2 is False
     • 3.0 == 3 is True