Workout 8. Modules & Packages

Question 1

Two-fold purpose of module?

Answer 1

1. code reuse across multiple programs
2. create namespace to avoid collision

Question 2

_ achieves code reuse within a single program.
_ achieves code reuse across multiple programs.

Answer 2

1. function
2. module

Question 3

import os module within your program.

Answer 3

import os

This defines all objects/functions/variables located in os module as your global variables (part of global namespace).

Question 4

Import module X, but only
define Y (from X) as a global variable

Answer 4

from X import Y

Question 5

Re-import an already loaded
module os.

Answer 5

importlib.reload(os)

Question 6

import sep object from os module, but use it as variable s.

Answer 6

from os import sep as s

Question 7

import all objects from os module.

Answer 7

from os import *

Question 8

In your custom module, expose only foo and bar objects when imported using *.

Answer 8

\_\_all\_\_ = ['foo', 'bar']
# foo and bar are some functions defined below in the module