kennethreitz/requests — pull request #617 by mwielgoszewski (2012-05-16 18:02:15+00:00)
Title: Expose case-insensitive key access when deleting a key from CaseInsensitveDict

Previously, when attempting to call del on a dictionary key that did not exist, a KeyError was raised. This commit changes the default behavior to be case-insensitive.