How to urlencode a querystring in Python?

Question

I am trying to urlencode this string before I submit.

queryString = 'eventName=' + evt.fields["eventName"] + '&' + 'eventDescription=' + evt.fields["eventDescription"];  

Answer 1

Python 2

What you're looking for is urllib.quote_plus:

safe_string = urllib.quote_plus('string_of_characters_like_these:$#@=?%^Q^$')  #Value: 'string_of_characters_like_these%3A%24%23%40%3D%3F%25%5EQ%5E%24' 

Python 3

In Python 3, the urllib package has been broken into smaller components. You'll use urllib.parse.quote_plus (note the parse child module)

import urllib.parse safe_string = urllib.parse.quote_plus(...) 

Answer 2

You need to pass your parameters into urlencode() as either a mapping (dict), or a sequence of 2-tuples, like:

>>> import urllib >>> f = { 'eventName' : 'myEvent', 'eventDescription' : 'cool event'} >>> urllib.urlencode(f) 'eventName=myEvent&eventDescription=cool+event' 

Python 3 or above

Use:

>>> urllib.parse.urlencode(f) eventName=myEvent&eventDescription=cool+event 

Note that this does not do url encoding in the commonly used sense (look at the output). For that use urllib.parse.quote_plus.