Artist class

The constructor takes a single argument, the artist name. This name will be “slugified” in order to use it within URLs. This process involves replacing spaces with hyphens, and making everything lowercase. If this is not sufficient for your particular artist, you’ll need to provide a pre-slugified version of their name.

• songs - a list of Song instances by this artist. This will call load() if it hasn’t been called yet

• name - the artist’s slugified name

• load() - populates the songs list

Song class

The constructor can be called in two ways. In the first, you provide a Metrolyrics URL, and the class will infer the artist and song title:

s = Song(url='url here')

In the second way, you provide a title and artist, which will be slugified.

s = Song('Taylor Swift', 'Love Story')

The attributes are:

• lyrics - a string. Accessing this will call load() if not yet loaded

• title - de-slugified title of song

• artist - de-slugified artist name

• load() - loads the lyrics

• format() - returns the lyrics, with a header that includes the title and artist.

The static method Song.find_song(lyrics) takes a string with a search term, and performs a Google search. It returns a Song instance corresponding to the first Metrolyrics link it finds, stopping after 20 results. If nothing is found, returns None.