Welcome

     Variables declared and defined in the Program , has scope associated with in. Namespace is a place variables have reference in it. Variables can be declared outside the function,variables as function parameters, variables declared with in the function,variables declared with in the nested functions, variables in the class attributes.

Variables has following scope

• Local Scope
• Nested Scope
• Global Scope
• built-in scope

Note:

A class is never used as a global scope

LEGB Rule

1. L: Local Scope

     Variables declared at Function level

2. E: Enclosed Scope

     This technique is used when nested functions looks for Variables

3. G: Global Scope

     Variables declared at Module level

4. B: Built-in Scope

     Python Framework Variables and methods in builtins module are available to run Python code without any external imports