Namespace

• It is a collection of names along with the information of the object it refers to.
• It maps names to the objects.

Types

1. Built-in

• It holds all the keywords or built-in names.
• It is created when the interpreter starts.

2. Global

• It holds all the global objects.

• It exists during the execution.

• global <variable> converts a local variable into a global one.

3. Local

• It exists for some part of the execution.
• It stores the names of those objects in a function.