A light weight Python library for the Spotify Web API
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Tony Jackson a7b25d0f6e
Add deprecation warnings to direct users towards using cache_handler (#630)
* Refactor functions into static methods of AuthBase

Functions is_token_expired was a loose function that was added to
SpotifyClientCredentials, SpotifyPKCE, and SpotifyImplicitGrant classes
through a method on each class that passed the call to the loose
is_token_expired function. Function _is_scope_subset was duplicated on
SpotifyClientCredentials, SpotifyPKCE, and SpotifyImplicitGrant classes.

Refactoring is_token_expired and _is_scope_subset to be static methods
on SpotifyAuthBase means both are available for all derived classes and
require less boilerplate.

* Create CacheHandler to abstract caching tokens

Previous code only supported caching to and from json files in a given
directory. In addition, the get_cached_token method mixed getting and
getting the token in the same method.

This change creates a CacheHandler class to abstract out the caching
implementation and allow the user to cache tokens in any way they
see fit. For example, the user could create a MongoCache class to store
and retrieve tokens from a Mongo database and specify that
cache_handler=MongoCache in creating an auth_manager object.

To implement the CacheHandler abstraction, the following changes are
implemented:

The validation code in each get_cached_token method in SpotifyOAuth,
SpotifyPKCE, and SpotifyImplicitGrant is moved into a validate_token
method in each class.

The CacheHandler class is created with get_cached_token and
save_token_to_cache methods.

Previous instances of self.get_cached_token() are now replaced with
self.validate_token(self.cache_handler.get_cached_token()) to preserve
the getting and validation behaviour.

cache_handler is added as an argument to SpotifyOAuth, SpotifyPKCE, and
SpotifyImplicitGrant. Specifying a cache_handler now overrides any
specification of cache_path and/or username.

To preserve backwards compatibility in handling cache files, a
CacheFileHandler class extending CacheHandler is created. If no
cache_handler is specified, the cache_path and username arguments are
used to create an instance of CacheFileHandler. It may be worth
deprecating the cache_path and username fields in favour of using
CacheFileHandler.

Tests are also modified and extended to cover the new functionality. A
sample MemoryCache CacheHandler is created to test getting and saving to
a custom CacheHandler.

* Fix cache_handler subclass check for Python 2

* Split assert message to fix line over max length

* Split cache handlers into cache_handler.py

* flake8 and autopep fixes

* Fix init to allow importing CacheHandler

When spotipy is installed as a package, CacheHandler is not accessible
from a `from spotipy import CacheHandler` statement because the import
is not specified in the __init__.py file. This commit adds CacheHandler
and CacheFileHandler to the init file so the user can import them.

* flake8 fix

* Add cache_path & username deprecation warning

When cache_path or username are specified in the constructors of
SpotifyOAuth, SpotifyPKCE, or SpotifyImplicitGrant, the constructor
creates a CacheFileHandler instance under the hood. The user is
currently able to create a CacheFileHandler instance in two ways:

1.  By creating it outside the SpotifyOAuth (or etc.) constructor and
    passing it as the cache_handler
2.  By passing cache_path and username to the constructor

Ideally, there would be one and only one obvious way to specify a
CacheFileHandler instance and the cache_handler approach allows any
CacheHandler to be used, so passing the cache_path or username to the
constructor should be deprecated.

* Update flask example to use CacheFileHandler

* Update changelog with deprecation warning info

* Restore token caching methods on auth_manager

Change 9550c8fd86 in
https://github.com/plamere/spotipy accidentally broke the caching
functionality in SpotifyOAUth, SpotifyPKCE, and SpotifyImplicitGrant by
removing the get_cached_token and _save_token_info methods from the
auth_manager object. Users with existing codebases that use the
get_cached_token and _save_token_info methods directly will experience
errors if they upgrade spotipy.

This commit restores the get_cached_token and _save_token_info methods
on the three auth_manager classes as aliases for the corresponding
methods in the cache_handler. Deprecation warnings are also added to
the get_cached_token and _save_token_info methods to direct users to
switch to using the new cache_handler approach.

* Add deprecation warning to docstrings

* Rearrange depr. warn for cache_path & username

Rearrange logic so that deprecation warning always triggers if
cache_path or username are specified. Previously, if cache_handler was
specified, no deprecation warning would be raised if cache_path or
username were specified.

In addition, if both cache_handler and cache_path or username are
specified, a new warning will be raised alongside the deprecation
warning to let the user know that the cache_path and username fields
will be ignored in favour of the cache_handler.
2021-01-13 11:34:53 +01:00
.github Improve help.md 2020-10-22 09:05:40 +01:00
docs Deprecate util.prompt_for_user_token() 2020-06-14 18:01:14 +01:00
examples Add deprecation warnings to direct users towards using cache_handler (#630) 2021-01-13 11:34:53 +01:00
spotipy Add deprecation warnings to direct users towards using cache_handler (#630) 2021-01-13 11:34:53 +01:00
tests Add deprecation warnings to direct users towards using cache_handler (#630) 2021-01-13 11:34:53 +01:00
.gitignore Update recommendations doc, fixes #290 2020-02-22 13:08:26 +00:00
CHANGELOG.md Add deprecation warnings to direct users towards using cache_handler (#630) 2021-01-13 11:34:53 +01:00
CONTRIBUTING.md isort Module is Observed in /spotipy/* (#589) 2020-10-20 00:13:14 +01:00
FAQ.md Allow open_browser to be set on creation of auth_manager (SpotifyOAuth/SpotifyPKCE) (#574) 2020-09-12 12:14:08 +01:00
LICENSE.md Bump to 2.6.0 2020-01-12 14:42:52 +00:00
MANIFEST.in Release with CHANGELOG + LICENSE, solves #454 2020-03-18 20:34:22 +00:00
README.md Made cache_path and username optional (#567) 2020-08-30 23:59:38 +01:00
setup.py Bump to 2.16.1 2020-10-24 14:41:14 +01:00
tox.ini Linting of core subpackage + clean up imports (#437) 2020-02-09 12:59:20 +00:00

Spotipy

A light weight Python library for the Spotify Web API

Tests Documentation Status

Documentation

Spotipy's full documentation is online at Spotipy Documentation.

Installation

pip install spotipy

or upgrade

pip install spotipy --upgrade

Quick Start

A full set of examples can be found in the online documentation and in the Spotipy examples directory.

To get started, install spotipy and create an app on https://developers.spotify.com/. Add your new ID and SECRET to your environment:

Without user authentication

import spotipy
from spotipy.oauth2 import SpotifyClientCredentials

sp = spotipy.Spotify(auth_manager=SpotifyClientCredentials(client_id="YOUR_APP_CLIENT_ID",
                                                           client_secret="YOUR_APP_CLIENT_SECRET"))

results = sp.search(q='weezer', limit=20)
for idx, track in enumerate(results['tracks']['items']):
    print(idx, track['name'])

With user authentication

import spotipy
from spotipy.oauth2 import SpotifyOAuth

sp = spotipy.Spotify(auth_manager=SpotifyOAuth(client_id="YOUR_APP_CLIENT_ID",
                                               client_secret="YOUR_APP_CLIENT_SECRET",
                                               redirect_uri="YOUR_APP_REDIRECT_URI",
                                               scope="user-library-read"))

results = sp.current_user_saved_tracks()
for idx, item in enumerate(results['items']):
    track = item['track']
    print(idx, track['artists'][0]['name'], "  ", track['name'])

Reporting Issues

For common questions please check our FAQ.

You can ask questions about Spotipy on Stack Overflow. Dont forget to add the Spotipy tag, and any other relevant tags as well, before posting.

If you have suggestions, bugs or other issues specific to this library, file them here. Or just send a pull request.