Module in Python

Graphics

Tkinter

Turtle

Canvas

import module

include module

load module

require module

Defines the specification of how it is to be used

Design and implementation of specific functionality to be incorporated into a program

Any program that reuses code

Denoted by triple quotes for providing the specification of certain program elements

Provides a means of reuse of program code

Provides a means of testing individual parts of the program

Provides a means of reducing the size of the program

Provides a means of dividing up tasks

Docstring

Client

Interface

Modularity

Modularity

Interface

Docstring

Client

The details of a program design are addressed before the overall design

Only the design of the program is addressed

The overall design of the program is addressed before the details

Only the details of the program are addressed

True

False

False

True

When a python file is directly executed, it is considered main module of a program

Main modules may import any number of modules

Special name given to main modules is: __main__

Other main modules can import main modules

Public namespace

Global namespace

Local namespace

Built-in namespace

The namespace of imported module becomes part of importing module

The identifiers in module are accessed as: modulename.identifier

The namespace of imported module becomes available to importing module

This form of import prevents name clash

The syntax is: from modulename import identifier

The namespace of imported module becomes part of importing module

The identifiers in module are accessed directly as: identifier

This form of import prevents name clash d)

Python first searches the built-in namespace, then the local namespace and finally the global namespace

Python first searches the built-in namespace, then the global namespace and finally the local namespace

Python first searches the local namespace, then the global namespace and finally the built-in namespace

Python first searches the global namespace, then the local namespace and finally the built-in namespace

[2,4,6]

[1,4,9]

[2,4,6] [1,4,9]

There is a name clash

In the “from-import” form of import, identifiers beginning with two underscores are private and aren’t imported

dir() built-in function monitors the items in the namespace of the main module

In the “from-import” form of import, all identifiers regardless of whether they are private or public are imported

When a module is loaded, a compiled version of the module with file extension .pyc is automatically produced

120

Nothing is printed

Error, method factorial doesn’t exist in math module

Error, the statement should be: print(factorial(5))