CODEWITHSUNDEEP
pythonimport
LNA
LNA

Reputation: 41

import string/re/sys in python

I keep noticing blocks of code starting with import string, import re or import sys.
I know that you must import a module before you can use it. Is the import based on the object?

Upvotes: 0

Views: 2221

Answers (3)

CoffeeRain
CoffeeRain

Reputation: 4522

Python has modules that give the code more functionalities. import re gives access to the re module which gives RegEx support. If you type help() at the Python interpreter and then type modules, it will return a list of all the modules.

Upvotes: 1

gahooa
gahooa

Reputation: 137342

import sys

Will have the effect of adding a sys variable to your local namespace (usually at the module level). Because sys is a module with it's own attributes, then you can say sys.something(), and Python will be able to reference the local name sys, and then the attribute something, and then call it ().

from os.path import join

This will look inside the os package, inside the path subpackage, and create a local reference to the join function in your namespace. That way, you can simply refer to it as:

join('a', 'b')

Suggest you look at a couple of tutorials that cover importing.

Upvotes: 0

Ignacio Vazquez-Abrams
Ignacio Vazquez-Abrams

Reputation: 798804

The import is based on what module you want to access the names of.

Upvotes: 2

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