Merge pull request #1 from Peter-Schorn/master

merge master into v3.

CHANGELOG.md

@@ -7,8 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased [3.0.0-alpha]
 
-While this is unreleased, please only add v3 features here.
-Rebasing master onto v3 doesn't require a changelog update.
+While this is unreleased, please only add v3 features here. Rebasing master onto v3 doesn't require a changelog update.
 
 ### Added
 
@@ -19,14 +18,24 @@ Rebasing master onto v3 doesn't require a changelog update.
 * Made `CacheHandler` an abstract base class
 
 * Modified the return structure of the `audio_features` function (wrapping the [Get Audio Features for Several Tracks](https://developer.spotify.com/documentation/web-api/reference/#endpoint-get-several-audio-features) API) to conform to the return structure of the similar methods listed below. The functions wrapping these APIs do not unwrap the single key JSON response, and this is currently the only function that does this.
-     * [Get Several Tracks](https://developer.spotify.com/documentation/web-api/reference/#endpoint-get-several-tracks)
-     * [Get Multiple Artists](https://developer.spotify.com/documentation/web-api/reference/#endpoint-get-multiple-artists)
-     * [Get Multiple Albums](https://developer.spotify.com/documentation/web-api/reference/#endpoint-get-multiple-albums)
+    * [Get Several Tracks](https://developer.spotify.com/documentation/web-api/reference/#endpoint-get-several-tracks)
+    * [Get Multiple Artists](https://developer.spotify.com/documentation/web-api/reference/#endpoint-get-multiple-artists)
+    * [Get Multiple Albums](https://developer.spotify.com/documentation/web-api/reference/#endpoint-get-multiple-albums)
 
 ## Unreleased [2.x.x]
 
 ### Added
 
+* Added `MemoryCacheHandler`, a cache handler that simply stores the token info in memory as an instance attribute of this class.
+
+### Fixed
+
+* Fixed a bug in `CacheFileHandler.__init__`: The documentation says that the username will be retrieved from the environment, but it wasn't.
+
+## [2.18.0] - 2021-04-13
+
+### Added
+
 - Enabled using both short and long IDs for playlist_change_details
 - Added a cache handler to `SpotifyClientCredentials`
 - Added the following endpoints
@@ -43,13 +52,9 @@ Rebasing master onto v3 doesn't require a changelog update.
 ### Fixed
 
 * Fixed the bugs in `SpotifyOAuth.refresh_access_token` and `SpotifyPKCE.refresh_access_token` which raised the incorrect exception upon receiving an error response from the server. This addresses #645.
-
 * Fixed a bug in `RequestHandler.do_GET` in which the non-existent `state` attribute of  `SpotifyOauthError` is accessed. This bug occurs when the user clicks "cancel" in the permissions dialog that opens in the browser.
-
 * Cleaned up the documentation for `SpotifyClientCredentials.__init__`, `SpotifyOAuth.__init__`, and `SpotifyPKCE.__init__`.
 
-    
-
 ## [2.17.1] - 2021-02-28
 
 ### Fixed
@@ -104,7 +109,7 @@ Rebasing master onto v3 doesn't require a changelog update.
 ### Added
 
 - `SpotifyPKCE.parse_auth_response_url`, mirroring that method in
- `SpotifyOAuth`
+    `SpotifyOAuth`
 
 ### Changed
 
@@ -113,7 +118,7 @@ Rebasing master onto v3 doesn't require a changelog update.
 ### Fixed
 
 - Using `SpotifyPKCE.get_authorization_url` will now generate a code
- challenge if needed
+    challenge if needed
 
 ## [2.14.0] - 2020-08-29
 
@@ -121,9 +126,9 @@ Rebasing master onto v3 doesn't require a changelog update.
 
  - (experimental) Support to search multiple/all markets at once.
  - Support to test whether the current user is following certain
- users or artists
+    users or artists
  - Proper replacements for all deprecated playlist endpoints
- (See https://developer.spotify.com/community/news/2018/06/12/changes-to-playlist-uris/ and below)
+    (See https://developer.spotify.com/community/news/2018/06/12/changes-to-playlist-uris/ and below)
 - Allow for OAuth 2.0 authorization by instructing the user to open the URL in a browser instead of opening the browser.
 - Reason for 403 error in SpotifyException
 - Support for the PKCE Auth Flow
@@ -141,15 +146,16 @@ Rebasing master onto v3 doesn't require a changelog update.
 - `user_playlist_replace_tracks` in favor of `playlist_replace_items`
 - `user_playlist_reorder_tracks` in favor of `playlist_reorder_items`
 - `user_playlist_remove_all_occurrences_of_tracks` in favor of
- `playlist_remove_all_occurrences_of_items`
+    `playlist_remove_all_occurrences_of_items`
 - `user_playlist_remove_specific_occurrences_of_tracks` in favor of
- `playlist_remove_specific_occurrences_of_items`
+    `playlist_remove_specific_occurrences_of_items`
 - `user_playlist_follow_playlist` in favor of
- `current_user_follow_playlist`
+    `current_user_follow_playlist`
 - `user_playlist_is_following` in favor of `playlist_is_following`
 - `playlist_tracks` in favor of `playlist_items`
 
 ### Fixed
+
 - fixed issue where episode URIs were being converted to track URIs in playlist calls
 
 ## [2.13.0] - 2020-06-25
@@ -157,12 +163,12 @@ Rebasing master onto v3 doesn't require a changelog update.
 ### Added
 
  - Added `SpotifyImplicitGrant` as an auth manager option. It provides
- user authentication without a client secret but sacrifices the ability
-   to refresh the token without user input. (However, read the class
-   docstring for security advisory.)
+    user authentication without a client secret but sacrifices the ability
+    to refresh the token without user input. (However, read the class
+    docstring for security advisory.)
  - Added built-in verification of the `state` query parameter
  - Added two new attributes: error and error_description to `SpotifyOauthError` exception class to show
-   authorization/authentication web api errors details.
+    authorization/authentication web api errors details.
  - Added `SpotifyStateError` subclass of `SpotifyOauthError`
  - Allow extending `SpotifyClientCredentials` and `SpotifyOAuth`
  - Added the market paramter to `album_tracks`
@@ -186,10 +192,10 @@ Rebasing master onto v3 doesn't require a changelog update.
 ### Changed
 
  - Updated the documentation to give more details on the authorization process and reflect
-   2020 Spotify Application jargon and practices.
+    2020 Spotify Application jargon and practices.
 
  - The local webserver is only started for localhost redirect_uri which specify a port,
-   i.e. it is started for `http://localhost:8080` or `http://127.0.0.1:8080`, not for `http://localhost`.
+    i.e. it is started for `http://localhost:8080` or `http://127.0.0.1:8080`, not for `http://localhost`.
 
 ### Fixed
 
@@ -258,6 +264,7 @@ Rebasing master onto v3 doesn't require a changelog update.
  - Optional `show_dialog` parameter to be passed to `SpotifyOAuth`
 
 ### Changed
+
   - Both `SpotifyClientCredentials` and `SpotifyOAuth` inherit from a common `SpotifyAuthBase` which handles common parameters and logics.
 
 ## [2.7.1] - 2020-01-20
@@ -301,16 +308,19 @@ Rebasing master onto v3 doesn't require a changelog update.
 ## [2.6.1] - 2020-01-13
 
 ### Fixed
+
  - Fixed inconsistent behaviour with some API methods when
-   a full HTTP URL is passed.
+    a full HTTP URL is passed.
  - Fixed invalid calls to logging warn method
 
 ### Removed
+
  - `mock` no longer needed for install. Only used in `tox`.
 
 ## [2.6.0] - 2020-01-12
 
 ### Added
+
  - Support for `playlist` to get a playlist without specifying a user
  - Support for `current_user_saved_albums_delete`
  - Support for `current_user_saved_albums_contains`
@@ -319,95 +329,126 @@ Rebasing master onto v3 doesn't require a changelog update.
  - Lint with flake8 using Github action
 
 ### Changed
+
  - Fix typos in doc
  - Start following [SemVer](https://semver.org) properly
 
 ## [2.5.0] - 2020-01-11
+
 Added follow and player endpoints
 
 ## [2.4.4] - 2017-01-04
+
 Python 3 fix
 
 ## [2.4.3] - 2017-01-02
+
 Fixed proxy issue in standard auth flow
 
 ## [2.4.2] - 2017-01-02
+
 Support getting audio features for a single track
 
 ## [2.4.1] - 2017-01-02
+
 Incorporated proxy support
 
 ## [2.4.0] - 2016-12-31
+
 Incorporated a number of PRs
 
 ## [2.3.8] - 2016-03-31
+
 Added recs, audio features, user top lists
 
 ## [2.3.7] - 2015-08-10
+
 Added current_user_followed_artists
 
 ## [2.3.6] - 2015-06-03
+
 Support for offset/limit with album_tracks API
 
 ## [2.3.5] - 2015-04-28
+
 Fixed bug in auto retry logic
 
 ## [2.3.3] - 2015-04-01
+
 Aadded client credential flow
 
 ## [2.3.2] - 2015-03-31
+
 Added auto retry logic
 
 ## [2.3.0] - 2015-01-05
+
 Added session support added by akx.
 
 ## [2.2.0] - 2014-11-15
+
 Added support for user_playlist_tracks
 
 ## [2.1.0] - 2014-10-25
+
 Added support for new_releases and featured_playlists
 
 ## [2.0.2] - 2014-08-25
+
 Moved to spotipy at pypi
 
 ## [1.2.0] - 2014-08-22
+
 Upgraded APIs and docs to make it be a real library
 
 ## [1.310.0] - 2014-08-20
+
 Added playlist replace and remove methods. Added auth tests. Improved API docs
 
 ## [1.301.0] - 2014-08-19
+
 Upgraded version number to take precedence over previously botched release (sigh)
 
 ## [1.50.0] - 2014-08-14
+
 Refactored util out of examples and into the main package
 
 ## [1.49.0] - 2014-07-23
+
 Support for "Your Music" tracks (add, delete, get), with examples
 
 ## [1.45.0] - 2014-07-07
+
 Support for related artists endpoint. Don't use cache auth codes when scope changes
 
 ## [1.44.0] - 2014-07-03
+
 Added show tracks.py example
 
 ## [1.43.0] - 2014-06-27
+
 Fixed JSON handling issue
 
 ## [1.42.0] - 2014-06-19
+
 Removed dependency on simplejson
 
 ## [1.40.0] - 2014-06-12
+
 Initial public release.
 
 ## [1.4.2] - 2014-06-21
+
 Added support for retrieving starred playlists
 
 ## [1.1.0] - 2014-06-17
+
 Updates to match released API
 
 ## [1.1.0] - 2014-05-18
+
 Repackaged for saner imports
 
 ## [1.0.0] - 2017-04-05
-Initial release
+
+Initial release

spotipy/cache_handler.py

@@ -1,10 +1,12 @@
 # -*- coding: utf-8 -*-
 
-__all__ = ['CacheHandler', 'CacheFileHandler']
+__all__ = ['CacheHandler', 'CacheFileHandler', 'MemoryCacheHandler']
 
 import errno
 import json
 import logging
+import os
+from spotipy.util import CLIENT_CREDS_ENV_VARS
 from abc import ABC, abstractmethod
 
 logger = logging.getLogger(__name__)
@@ -54,6 +56,7 @@ class CacheFileHandler(CacheHandler):
             self.cache_path = cache_path
         else:
             cache_path = ".cache"
+            username = (username or os.getenv(CLIENT_CREDS_ENV_VARS["client_username"]))
             if username:
                 cache_path += "-" + str(username)
             self.cache_path = cache_path
@@ -83,3 +86,24 @@ class CacheFileHandler(CacheHandler):
         except IOError:
             logger.warning('Couldn\'t write token to cache at: %s',
                            self.cache_path)
+
+
+class MemoryCacheHandler(CacheHandler):
+    """
+    A cache handler that simply stores the token info in memory as an
+    instance attribute of this class. The token info will be lost when this
+    instance is freed.
+    """
+
+    def __init__(self, token_info=None):
+        """
+        Parameters:
+            * token_info: The token info to store in memory. Can be None.
+        """
+        self.token_info = token_info
+
+    def get_cached_token(self):
+        return self.token_info
+
+    def save_token_to_cache(self, token_info):
+        self.token_info = token_info

tests/unit/test_oauth.py

@@ -6,7 +6,7 @@ import unittest
 import six.moves.urllib.parse as urllibparse
 
 from spotipy import SpotifyOAuth, SpotifyImplicitGrant, SpotifyPKCE
-from spotipy.cache_handler import CacheHandler
+from spotipy.cache_handler import MemoryCacheHandler
 from spotipy.oauth2 import SpotifyClientCredentials, SpotifyOauthError
 from spotipy.oauth2 import SpotifyStateError
 
@@ -51,18 +51,6 @@ def _make_pkceauth(*args, **kwargs):
     return SpotifyPKCE("CLID", "REDIR", "STATE", *args, **kwargs)
 
 
-class MemoryCache(CacheHandler):
-    def __init__(self, token_info=None):
-        self.token_info = token_info
-
-    def get_cached_token(self):
-        return self.token_info
-
-    def save_token_to_cache(self, token_info):
-        self.token_info = token_info
-        return None
-
-
 class OAuthCacheTest(unittest.TestCase):
 
     @patch.multiple(SpotifyOAuth,
@@ -161,7 +149,7 @@ class OAuthCacheTest(unittest.TestCase):
         scope = "playlist-modify-private"
         tok = _make_fake_token(1, 1, scope)
 
-        spot = _make_oauth(scope, cache_handler=MemoryCache())
+        spot = _make_oauth(scope, cache_handler=MemoryCacheHandler())
         spot.cache_handler.save_token_to_cache(tok)
         cached_tok = spot.cache_handler.get_cached_token()