# `mopidy.core` --- Core API

The core API is the interface that is used by frontends like `mopidy.http` and `mopidy.mpd`. The core layer is in between the frontends and the backends. Don't forget that you will be accessing core as a Pykka actor. If you are only interested in being notified about changes in core see `CoreListener`.

Changed in version 1.1: All core API calls are now type checked.

Changed in version 1.1: All backend return values are now type checked.

class `mopidy.core.``Core`(config=None, mixer=None, backends=None, audio=None)
  `tracklist`

    Manages everything related to the list of tracks we will play. See `TracklistController`.

  `playback`

    Manages playback state and the current playing track. See `PlaybackController`.

  `library`

    Manages the music library, e.g. searching and browsing for music. See `LibraryController`.

  `playlists`

    Manages stored playlists. See `PlaylistsController`.

  `mixer`

    Manages volume and muting. See `MixerController`.

  `history`

    Keeps record of what tracks have been played. See `HistoryController`.

  `get_uri_schemes`()

    Get list of URI schemes we can handle

  `get_version`()

    Get version of the Mopidy core API

## Tracklist controller

class `mopidy.core.``TracklistController`(core)

### Manipulating

`TracklistController.``add`(tracks=None, at_position=None, uri=None, uris=None)

  Add tracks to the tracklist.

  If `uri` is given instead of `tracks`, the URI is looked up in the library and the resulting tracks are added to the tracklist.

  If `uris` is given instead of `uri` or `tracks`, the URIs are looked up in the library and the resulting tracks are added to the tracklist.

  If `at_position` is given, the tracks are inserted at the given position in the tracklist. If `at_position` is not given, the tracks are appended to the end of the tracklist.

  Triggers the `mopidy.core.CoreListener.tracklist_changed()` event.

  Parameters: | tracks (list of `mopidy.models.Track` or `None`) -- tracks to add at_position (int or `None`) -- position in tracklist to add tracks uri (string or `None`) -- URI for tracks to add uris (list of string or `None`) -- list of URIs for tracks to add
  Return type: | list of `mopidy.models.TlTrack`

  New in version 1.0: The `uris` argument.

  Deprecated since version 1.0: The `tracks` and `uri` arguments. Use `uris`.

`TracklistController.``remove`(criteria=None, **kwargs)

  Remove the matching tracks from the tracklist.

  Uses `filter()` to lookup the tracks to remove.

  Triggers the `mopidy.core.CoreListener.tracklist_changed()` event.

  Parameters: | criteria (dict) -- on or more criteria to match by
  Return type: | list of `mopidy.models.TlTrack` that was removed

  Deprecated since version 1.1: Providing the criteria via `kwargs`.

`TracklistController.``clear`()

  Clear the tracklist.

  Triggers the `mopidy.core.CoreListener.tracklist_changed()` event.

`TracklistController.``move`(start, end, to_position)

  Move the tracks in the slice `[start:end]` to `to_position`.

  Triggers the `mopidy.core.CoreListener.tracklist_changed()` event.

  Parameters: | start (int) -- position of first track to move end (int) -- position after last track to move to_position (int) -- new position for the tracks

`TracklistController.``shuffle`(start=None, end=None)

  Shuffles the entire tracklist. If `start` and `end` is given only shuffles the slice `[start:end]`.

  Triggers the `mopidy.core.CoreListener.tracklist_changed()` event.

  Parameters: | start (int or `None`) -- position of first track to shuffle end (int or `None`) -- position after last track to shuffle

### Current state

`TracklistController.``get_tl_tracks`()

  Get tracklist as list of `mopidy.models.TlTrack`.

`TracklistController.``index`(tl_track=None, tlid=None)

  The position of the given track in the tracklist.

  If neither tl_track or tlid is given we return the index of the currently playing track.

  Parameters: | tl_track (`mopidy.models.TlTrack` or `None`) -- the track to find the index of tlid (`int` or `None`) -- TLID of the track to find the index of
  Return type: | `int` or `None`

  New in version 1.1: The tlid parameter

`TracklistController.``get_version`()

  Get the tracklist version.

  Integer which is increased every time the tracklist is changed. Is not reset before Mopidy is restarted.

`TracklistController.``get_length`()

  Get length of the tracklist.

`TracklistController.``get_tracks`()

  Get tracklist as list of `mopidy.models.Track`.

`TracklistController.``slice`(start, end)

  Returns a slice of the tracklist, limited by the given start and end positions.

  Parameters: | start (int) -- position of first track to include in slice end (int) -- position after last track to include in slice
  Return type: | `mopidy.models.TlTrack`

`TracklistController.``filter`(criteria=None, **kwargs)

  Filter the tracklist by the given criterias.

  A criteria consists of a model field to check and a list of values to compare it against. If the model field matches one of the values, it may be returned.

  Only tracks that matches all the given criterias are returned.

  Examples:

      # Returns tracks with TLIDs 1, 2, 3, or 4 (tracklist ID)
      filter({'tlid': [1, 2, 3, 4]})

      # Returns track with URIs 'xyz' or 'abc'
      filter({'uri': ['xyz', 'abc']})

      # Returns track with a matching TLIDs (1, 3 or 6) and a
      # matching URI ('xyz' or 'abc')
      filter({'tlid': [1, 3, 6], 'uri': ['xyz', 'abc']})

  Parameters: | criteria (dict, of (string, list) pairs) -- on or more criteria to match by
  Return type: | list of `mopidy.models.TlTrack`

  Deprecated since version 1.1: Providing the criteria via `kwargs`.

### Future state

`TracklistController.``get_eot_tlid`()

  The TLID of the track that will be played after the current track.

  Not necessarily the same TLID as returned by `get_next_tlid()`.

  Return type: | `int` or `None`

  New in version 1.1.

`TracklistController.``get_next_tlid`()

  The tlid of the track that will be played if calling `mopidy.core.PlaybackController.next()`.

  For normal playback this is the next track in the tracklist. If repeat is enabled the next track can loop around the tracklist. When random is enabled this should be a random track, all tracks should be played once before the tracklist repeats.

  Return type: | `int` or `None`

  New in version 1.1.

`TracklistController.``get_previous_tlid`()

  Returns the TLID of the track that will be played if calling `mopidy.core.PlaybackController.previous()`.

  For normal playback this is the previous track in the tracklist. If random and/or consume is enabled it should return the current track instead.

  Return type: | `int` or `None`

  New in version 1.1.

`TracklistController.``eot_track`(tl_track)

  The track that will be played after the given track.

  Not necessarily the same track as `next_track()`.

  Parameters: | tl_track (`mopidy.models.TlTrack` or `None`) -- the reference track
  Return type: | `mopidy.models.TlTrack` or `None`

`TracklistController.``next_track`(tl_track)

  The track that will be played if calling `mopidy.core.PlaybackController.next()`.

  For normal playback this is the next track in the tracklist. If repeat is enabled the next track can loop around the tracklist. When random is enabled this should be a random track, all tracks should be played once before the tracklist repeats.

  Parameters: | tl_track (`mopidy.models.TlTrack` or `None`) -- the reference track
  Return type: | `mopidy.models.TlTrack` or `None`

`TracklistController.``previous_track`(tl_track)

  Returns the track that will be played if calling `mopidy.core.PlaybackController.previous()`.

  For normal playback this is the previous track in the tracklist. If random and/or consume is enabled it should return the current track instead.

  Parameters: | tl_track (`mopidy.models.TlTrack` or `None`) -- the reference track
  Return type: | `mopidy.models.TlTrack` or `None`

### Options

`TracklistController.``get_consume`()

  Get consume mode.

  `True`
    Tracks are removed from the tracklist when they have been played.
  `False`
    Tracks are not removed from the tracklist.

`TracklistController.``set_consume`(value)

  Set consume mode.

  `True`
    Tracks are removed from the tracklist when they have been played.
  `False`
    Tracks are not removed from the tracklist.

`TracklistController.``get_random`()

  Get random mode.

  `True`
    Tracks are selected at random from the tracklist.
  `False`
    Tracks are played in the order of the tracklist.

`TracklistController.``set_random`(value)

  Set random mode.

  `True`
    Tracks are selected at random from the tracklist.
  `False`
    Tracks are played in the order of the tracklist.

`TracklistController.``get_repeat`()

  Get repeat mode.

  `True`
    The tracklist is played repeatedly.
  `False`
    The tracklist is played once.

`TracklistController.``set_repeat`(value)

  Set repeat mode.

  To repeat a single track, set both `repeat` and `single`.

  `True`
    The tracklist is played repeatedly.
  `False`
    The tracklist is played once.

`TracklistController.``get_single`()

  Get single mode.

  `True`
    Playback is stopped after current song, unless in `repeat` mode.
  `False`
    Playback continues after current song.

`TracklistController.``set_single`(value)

  Set single mode.

  `True`
    Playback is stopped after current song, unless in `repeat` mode.
  `False`
    Playback continues after current song.

## Playback controller

class `mopidy.core.``PlaybackController`(audio, backends, core)

### Playback control

`PlaybackController.``play`(tl_track=None, tlid=None)

  Play the given track, or if the given tl_track and tlid is `None`, play the currently active track.

  Note that the track must already be in the tracklist.

  Parameters: | tl_track (`mopidy.models.TlTrack` or `None`) -- track to play tlid (`int` or `None`) -- TLID of the track to play

`PlaybackController.``next`()

  Change to the next track.

  The current playback state will be kept. If it was playing, playing will continue. If it was paused, it will still be paused, etc.

`PlaybackController.``previous`()

  Change to the previous track.

  The current playback state will be kept. If it was playing, playing will continue. If it was paused, it will still be paused, etc.

`PlaybackController.``stop`()

  Stop playing.

`PlaybackController.``pause`()

  Pause playback.

`PlaybackController.``resume`()

  If paused, resume playing the current track.

`PlaybackController.``seek`(time_position)

  Seeks to time position given in milliseconds.

  Parameters: | time_position (int) -- time position in milliseconds
  Return type: | `True` if successful, else `False`

### Current track

`PlaybackController.``get_current_tl_track`()

  Get the currently playing or selected track.

  Returns a `mopidy.models.TlTrack` or `None`.

`PlaybackController.``get_current_track`()

  Get the currently playing or selected track.

  Extracted from `get_current_tl_track()` for convenience.

  Returns a `mopidy.models.Track` or `None`.

`PlaybackController.``get_stream_title`()

  Get the current stream title or `None`.

`PlaybackController.``get_time_position`()

  Get time position in milliseconds.

### Playback states

`PlaybackController.``get_state`()

  Get The playback state.

`PlaybackController.``set_state`(new_state)

  Set the playback state.

  Must be `PLAYING`, `PAUSED`, or `STOPPED`.

  Possible states and transitions:

  digraph state_transitions { "STOPPED" -> "PLAYING" [ label="play" ] "STOPPED" -> "PAUSED" [ label="pause" ] "PLAYING" -> "STOPPED" [ label="stop" ] "PLAYING" -> "PAUSED" [ label="pause" ] "PLAYING" -> "PLAYING" [ label="play" ] "PAUSED" -> "PLAYING" [ label="resume" ] "PAUSED" -> "STOPPED" [ label="stop" ] }

class `mopidy.core.``PlaybackState`
  `STOPPED` = 'stopped'
  `PLAYING` = 'playing'
  `PAUSED` = 'paused'

## Library controller

class `mopidy.core.``LibraryController`

`LibraryController.``browse`(uri)

  Browse directories and tracks at the given `uri`.

  `uri` is a string which represents some directory belonging to a backend. To get the intial root directories for backends pass `None` as the URI.

  Returns a list of `mopidy.models.Ref` objects for the directories and tracks at the given `uri`.

  The `Ref` objects representing tracks keep the track's original URI. A matching pair of objects can look like this:

      Track(uri='dummy:/foo.mp3', name='foo', artists=..., album=...)
      Ref.track(uri='dummy:/foo.mp3', name='foo')

  The `Ref` objects representing directories have backend specific URIs. These are opaque values, so no one but the backend that created them should try and derive any meaning from them. The only valid exception to this is checking the scheme, as it is used to route browse requests to the correct backend.

  For example, the dummy library's `/bar` directory could be returned like this:

      Ref.directory(uri='dummy:directory:/bar', name='bar')

  Parameters: | uri (string) -- URI to browse
  Return type: | list of `mopidy.models.Ref`

  New in version 0.18.

`LibraryController.``search`(query=None, uris=None, exact=False, **kwargs)

  Search the library for tracks where `field` contains `values`. `field` can be one of `uri`, `track_name`, `album`, `artist`, `albumartist`, `composer`, `performer`, `track_no`, `genre`, `date`, `comment` or `any`.

  If `uris` is given, the search is limited to results from within the URI roots. For example passing `uris=['file:']` will limit the search to the local backend.

  Examples:

      # Returns results matching 'a' in any backend
      search({'any': ['a']})

      # Returns results matching artist 'xyz' in any backend
      search({'artist': ['xyz']})

      # Returns results matching 'a' and 'b' and artist 'xyz' in any
      # backend
      search({'any': ['a', 'b'], 'artist': ['xyz']})

      # Returns results matching 'a' if within the given URI roots
      # "file:///media/music" and "spotify:"
      search({'any': ['a']}, uris=['file:///media/music', 'spotify:'])

      # Returns results matching artist 'xyz' and 'abc' in any backend
      search({'artist': ['xyz', 'abc']})

  Parameters: | query (dict) -- one or more queries to search for uris (list of string or `None`) -- zero or more URI roots to limit the search to exact (`bool`) -- if the search should use exact matching
  Return type: | list of `mopidy.models.SearchResult`

  New in version 1.0: The `exact` keyword argument, which replaces `find_exact()`.

  Deprecated since version 1.0: Previously, if the query was empty, and the backend could support it, all available tracks were returned. This has not changed, but it is strongly discouraged. No new code should rely on this behavior.

  Deprecated since version 1.1: Providing the search query via `kwargs` is no longer supported.

`LibraryController.``lookup`(uri=None, uris=None)

  Lookup the given URIs.

  If the URI expands to multiple tracks, the returned list will contain them all.

  Parameters: | uri (string or `None`) -- track URI uris (list of string or `None`) -- track URIs
  Return type: | list of `mopidy.models.Track` if uri was set or {uri: list of `mopidy.models.Track`} if uris was set.

  New in version 1.0: The `uris` argument.

  Deprecated since version 1.0: The `uri` argument. Use `uris` instead.

`LibraryController.``refresh`(uri=None)

  Refresh library. Limit to URI and below if an URI is given.

  Parameters: | uri (string) -- directory or track URI

`LibraryController.``get_images`(uris)

  Lookup the images for the given URIs

  Backends can use this to return image URIs for any URI they know about be it tracks, albums, playlists. The lookup result is a dictionary mapping the provided URIs to lists of images.

  Unknown URIs or URIs the corresponding backend couldn't find anything for will simply return an empty list for that URI.

  Parameters: | uris (list of string) -- list of URIs to find images for
  Return type: | {uri: tuple of `mopidy.models.Image`}

  New in version 1.0.

`LibraryController.``get_distinct`(field, query=None)

  List distinct values for a given field from the library.

  This has mainly been added to support the list commands the MPD protocol supports in a more sane fashion. Other frontends are not recommended to use this method.

  Parameters: | field (string) -- One of `track`, `artist`, `albumartist`, `album`, `composer`, `performer`, `date` or `genre`. query (dict) -- Query to use for limiting results, see `search()` for details about the query format.
  Return type: | set of values corresponding to the requested field type.

  New in version 1.0.

## Playlists controller

class `mopidy.core.``PlaylistsController`

`PlaylistsController.``get_uri_schemes`()

  Get the list of URI schemes that support playlists.

  Return type: | list of string

  New in version 2.0.

### Fetching

`PlaylistsController.``as_list`()

  Get a list of the currently available playlists.

  Returns a list of `Ref` objects referring to the playlists. In other words, no information about the playlists' content is given.

  Return type: | list of `mopidy.models.Ref`

  New in version 1.0.

`PlaylistsController.``get_items`(uri)

  Get the items in a playlist specified by `uri`.

  Returns a list of `Ref` objects referring to the playlist's items.

  If a playlist with the given `uri` doesn't exist, it returns `None`.

  Return type: | list of `mopidy.models.Ref`, or `None`

  New in version 1.0.

`PlaylistsController.``lookup`(uri)

  Lookup playlist with given URI in both the set of playlists and in any other playlist sources. Returns `None` if not found.

  Parameters: | uri (string) -- playlist URI
  Return type: | `mopidy.models.Playlist` or `None`

`PlaylistsController.``refresh`(uri_scheme=None)

  Refresh the playlists in `playlists`.

  If `uri_scheme` is `None`, all backends are asked to refresh. If `uri_scheme` is an URI scheme handled by a backend, only that backend is asked to refresh. If `uri_scheme` doesn't match any current backend, nothing happens.

  Parameters: | uri_scheme (string) -- limit to the backend matching the URI scheme

### Manipulating

`PlaylistsController.``create`(name, uri_scheme=None)

  Create a new playlist.

  If `uri_scheme` matches an URI scheme handled by a current backend, that backend is asked to create the playlist. If `uri_scheme` is `None` or doesn't match a current backend, the first backend is asked to create the playlist.

  All new playlists must be created by calling this method, and not by creating new instances of `mopidy.models.Playlist`.

  Parameters: | name (string) -- name of the new playlist uri_scheme (string) -- use the backend matching the URI scheme
  Return type: | `mopidy.models.Playlist` or `None`

`PlaylistsController.``save`(playlist)

  Save the playlist.

  For a playlist to be saveable, it must have the `uri` attribute set. You must not set the `uri` atribute yourself, but use playlist objects returned by `create()` or retrieved from `playlists`, which will always give you saveable playlists.

  The method returns the saved playlist. The return playlist may differ from the saved playlist. E.g. if the playlist name was changed, the returned playlist may have a different URI. The caller of this method must throw away the playlist sent to this method, and use the returned playlist instead.

  If the playlist's URI isn't set or doesn't match the URI scheme of a current backend, nothing is done and `None` is returned.

  Parameters: | playlist (`mopidy.models.Playlist`) -- the playlist
  Return type: | `mopidy.models.Playlist` or `None`

`PlaylistsController.``delete`(uri)

  Delete playlist identified by the URI.

  If the URI doesn't match the URI schemes handled by the current backends, nothing happens.

  Parameters: | uri (string) -- URI of the playlist to delete

## Mixer controller

class `mopidy.core.``MixerController`

`MixerController.``get_mute`()

  Get mute state.

  `True` if muted, `False` unmuted, `None` if unknown.

`MixerController.``set_mute`(mute)

  Set mute state.

  `True` to mute, `False` to unmute.

  Returns `True` if call is successful, otherwise `False`.

`MixerController.``get_volume`()

  Get the volume.

  Integer in range [0..100] or `None` if unknown.

  The volume scale is linear.

`MixerController.``set_volume`(volume)

  Set the volume.

  The volume is defined as an integer in range [0..100].

  The volume scale is linear.

  Returns `True` if call is successful, otherwise `False`.

## History controller

class `mopidy.core.``HistoryController`

`HistoryController.``get_history`()

  Get the track history.

  The timestamps are milliseconds since epoch.

  Returns: | the track history
  Return type: | list of (timestamp, `mopidy.models.Ref`) tuples

`HistoryController.``get_length`()

  Get the number of tracks in the history.

  Returns: | the history length
  Return type: | int

## Core events

class `mopidy.core.``CoreListener`

  Marker interface for recipients of events sent by the core actor.

  Any Pykka actor that mixes in this class will receive calls to the methods defined here when the corresponding events happen in the core actor. This interface is used both for looking up what actors to notify of the events, and for providing default implementations for those listeners that are not interested in all events.

  `mute_changed`(mute)

    Called whenever the mute state is changed.

    MAY be implemented by actor.

    Parameters: | mute (boolean) -- the new mute state

  `on_event`(event, **kwargs)

    Called on all events.

    MAY be implemented by actor. By default, this method forwards the event to the specific event methods.

    Parameters: | event (string) -- the event name kwargs -- any other arguments to the specific event handlers

  `options_changed`()

    Called whenever an option is changed.

    MAY be implemented by actor.

  `playback_state_changed`(old_state, new_state)

    Called whenever playback state is changed.

    MAY be implemented by actor.

    Parameters: | old_state (string from `mopidy.core.PlaybackState` field) -- the state before the change new_state (string from `mopidy.core.PlaybackState` field) -- the state after the change

  `playlist_changed`(playlist)

    Called whenever a playlist is changed.

    MAY be implemented by actor.

    Parameters: | playlist (`mopidy.models.Playlist`) -- the changed playlist

  `playlist_deleted`(uri)

    Called whenever a playlist is deleted.

    MAY be implemented by actor.

    Parameters: | uri (string) -- the URI of the deleted playlist

  `playlists_loaded`()

    Called when playlists are loaded or refreshed.

    MAY be implemented by actor.

  `seeked`(time_position)

    Called whenever the time position changes by an unexpected amount, e.g. at seek to a new time position.

    MAY be implemented by actor.

    Parameters: | time_position (int) -- the position that was seeked to in milliseconds

  static `send`(**kwargs)

    Helper to allow calling of core listener events

  `stream_title_changed`(title)

    Called whenever the currently playing stream title changes.

    MAY be implemented by actor.

    Parameters: | title (string) -- the new stream title

  `track_playback_ended`(tl_track, time_position)

    Called whenever playback of a track ends.

    MAY be implemented by actor.

    Parameters: | tl_track (`mopidy.models.TlTrack`) -- the track that was played before playback stopped time_position (int) -- the time position in milliseconds

  `track_playback_paused`(tl_track, time_position)

    Called whenever track playback is paused.

    MAY be implemented by actor.

    Parameters: | tl_track (`mopidy.models.TlTrack`) -- the track that was playing when playback paused time_position (int) -- the time position in milliseconds

  `track_playback_resumed`(tl_track, time_position)

    Called whenever track playback is resumed.

    MAY be implemented by actor.

    Parameters: | tl_track (`mopidy.models.TlTrack`) -- the track that was playing when playback resumed time_position (int) -- the time position in milliseconds

  `track_playback_started`(tl_track)

    Called whenever a new track starts playing.

    MAY be implemented by actor.

    Parameters: | tl_track (`mopidy.models.TlTrack`) -- the track that just started playing

  `tracklist_changed`()

    Called whenever the tracklist is changed.

    MAY be implemented by actor.

  `volume_changed`(volume)

    Called whenever the volume is changed.

    MAY be implemented by actor.

    Parameters: | volume (int) -- the new volume in the range [0..100]

## Deprecated API features

Warning

Though these features still work, they are slated to go away in the next major Mopidy release.

### Core

`Core.``version`

  Deprecated since version 1.0: Use `get_version()` instead.

`Core.``uri_schemes`

  Deprecated since version 1.0: Use `get_uri_schemes()` instead.

### TracklistController

`TracklistController.``tl_tracks`

  Deprecated since version 1.0: Use `get_tl_tracks()` instead.

`TracklistController.``tracks`

  Deprecated since version 1.0: Use `get_tracks()` instead.

`TracklistController.``version`

  Deprecated since version 1.0: Use `get_version()` instead.

`TracklistController.``length`

  Deprecated since version 1.0: Use `get_length()` instead.

`TracklistController.``consume`

  Deprecated since version 1.0: Use `get_consume()` and `set_consume()` instead.

`TracklistController.``random`

  Deprecated since version 1.0: Use `get_random()` and `set_random()` instead.

`TracklistController.``repeat`

  Deprecated since version 1.0: Use `get_repeat()` and `set_repeat()` instead.

`TracklistController.``single`

  Deprecated since version 1.0: Use `get_single()` and `set_single()` instead.

### PlaybackController

`PlaybackController.``get_mute`()

  Deprecated since version 1.0: Use `core.mixer.get_mute()` instead.

`PlaybackController.``get_volume`()

  Deprecated since version 1.0: Use `core.mixer.get_volume()` instead.

`PlaybackController.``current_tl_track`

  Deprecated since version 1.0: Use `get_current_tl_track()` instead.

`PlaybackController.``current_track`

  Deprecated since version 1.0: Use `get_current_track()` instead.

`PlaybackController.``state`

  Deprecated since version 1.0: Use `get_state()` and `set_state()` instead.

`PlaybackController.``time_position`

  Deprecated since version 1.0: Use `get_time_position()` instead.

`PlaybackController.``mute`

  Deprecated since version 1.0: Use `core.mixer.get_mute()` and `core.mixer.set_mute()` instead.

`PlaybackController.``volume`

  Deprecated since version 1.0: Use `core.mixer.get_volume()` and `core.mixer.set_volume()` instead.

### LibraryController

`LibraryController.``find_exact`(query=None, uris=None, **kwargs)

  Search the library for tracks where `field` is `values`.

  Deprecated since version 1.0: Use `search()` with `exact` set.

### PlaylistsController

`PlaylistsController.``filter`(criteria=None, **kwargs)

  Filter playlists by the given criterias.

  Examples:

      # Returns track with name 'a'
      filter({'name': 'a'})

      # Returns track with URI 'xyz'
      filter({'uri': 'xyz'})

      # Returns track with name 'a' and URI 'xyz'
      filter({'name': 'a', 'uri': 'xyz'})

  Parameters: | criteria (dict) -- one or more criteria to match by
  Return type: | list of `mopidy.models.Playlist`

  Deprecated since version 1.0: Use `as_list()` and filter yourself.

`PlaylistsController.``get_playlists`(include_tracks=True)

  Get the available playlists.

  Return type: | list of `mopidy.models.Playlist`

  Changed in version 1.0: If you call the method with `include_tracks=False`, the `last_modified` field of the returned playlists is no longer set.

  Deprecated since version 1.0: Use `as_list()` and `get_items()` instead.

`PlaylistsController.``playlists`

  Deprecated since version 1.0: Use `as_list()` and `get_items()` instead.