packages.md

Modules and Packages

Exercises

Exercise 1

Join the right halves of sentences.

Exercise 2

Which import statements are correct?

• import re
• import re.sub
• from re import sub
• from re import *
• from re.sub import *

Exercise 3

Where does Python look for modules to import?

• in the variable sys.path
• in the current working directory
• in the directory where the current module is
• in the site-packages folder
• in directories in the PYTHONPATH variable

Exercise 4

Which statements about packages are true?

• a package is a directory with modules
• a package must contain a file __init__.py
• a package may contain no code
• a module may contain many packages

Exercise 5

Which packages are installed by default?

• os - manipulating files and directories
• time - accessing date and time
• csv - read and write tables
• numpy - number crunching
• pandas - clever handling of tabular data