* Add SpotifyImplicitGrant with get_access_token and get_cached_token (and minimum related functions)
* Add some overlooked necessary methods/values in SpotifyImplicitGrant
* Remove unsuppported functionality and make SpotifyImplicitGrant public
* Allow/Expose integration of SpotifyImplicitGrant in client
* Add Implicit Grant tests and decrease abilities of prompt_for_user_token
Remove Implicit Grant and state support from prompt_for_user_token
* Add documentation and changelog entry
* Touch up PEP8 compliance
* Ignore long line with link for flake8
* Correct changelog
* Restore compatibility with Python 2.7
* Correct help(SpotifyImplicitGrant.get_access_token)
* Remove as_dict from SpotifyImplicitGrant.get_access_token
* Combine status check functionality with implicit grant support
In oauth2.py:
* Add state checking to SpotifyImplicitGrant
* Add dedicated SpotifyStateError as subclass of SpotifyOauthError
* Moved `_get_user_input` from SpotifyOAuth to superclass SpotifyAuthBase
* Renamed `parse_oauth_response_url` to `parse_auth_response_url`
* Moved error handling into `parse_auth_response_url`
Made minor changes in tests and client.py accordingly
* Update changelog
* Trim down tests for SpotifyImplicitGrant
* Fix trailing whitespace
* Auto-refresh AuthCode flow token.
* Reformatted.
* Reformatted.
* Removed invalid syntax.
* Removed abstract class SpotifyAuthManager.
* Fix typo on docstrings.
* Optionally try to fetch main input parameters from environment.
Implements the capability of trying to fetch the following parameters from the environment, when they're not directly passed to the authorization handler.
The affected parameters are: client_id, client_secret, redirect_uri.
An SpotifyOauthError is raised if no value gets found.
* Removed f-string for Python2 compatibility.
* Fix line-too-long.
* Remove useless import.
* Add username to docstring.
* Remove redundant return.
* Fix empty lines print statement for backward compatibility with Python2.
* Update simple4 example.
* Set optional 'as_dict' parameter on OAuth 'get_access_token'.
* Update changelog.
Co-authored-by: Stéphane Bruckert <stephane.bruckert@gmail.com>
* auto-refresh user token
* example for a long-running user-request app
* wrap long lines
* combine duplicate code into _refresh_token_if_expired method
* add changelog entry
