Variables

It is a storage of value for future use. In python it is a pointer of specific object in memory.

Naming convension

• snake_case: variables, function, methods, modules
• PascalCase: Classes (user defined. built-in classes are in lower case)
• slug-case: Packages
• UPPER_SNAKE_CASE: Constants

Dynamic typing

a = 10
a = True
a = 'Kibria'
a = None

Working with variables

• Always choose meaningful name
• Use noun for variable name: age, name, photo
• Use verb for function name: get_age, get_name, is_active
• Use plural for sequence or list: ages, names, photos

variable scope

todo