Add lyrics module

bot.py

@@ -56,4 +56,17 @@ async def search_image(ctx, search_arg):
         print(e)
         await ctx.send("Sorry, something went wrong.")
 
+
+@bot.command(pass_context=True, name='lyrics')
+async def get_lyrics(ctx, *, message):
+    try:
+        output = lyrics.process(message)
+        r = str(output['output']).replace('{', '').replace('}', '')
+        r = r.replace('\'text\':', '').replace('\'', '')
+        r = r.replace('\\n', '\n').replace('"', '')
+        await ctx.send(r)
+    except Exception as e:
+        print(e)
+        await ctx.send("Sorry, something went wrong.")
+
 bot.run(TOKEN)

modules/lyrics.py

@@ -0,0 +1,56 @@
+import os
+
+import requests
+
+import config
+from templates.text import TextTemplate
+
+MUSIXMATCH_API_KEY = os.environ.get('MUSIXMATCH_API_KEY', config.MUSIXMATCH_API_KEY)
+
+
+def process(message):
+    output = {}
+    try:
+        # Search in title
+        r = requests.get('http://api.musixmatch.com/ws/1.1/track.search', params={
+                         'apikey': MUSIXMATCH_API_KEY,
+                         'q_track': message,
+                         's_track_rating': 'desc',
+                         'f_has_lyrics': '1'
+                         })
+        data = r.json()
+        # Search inside lyrics if no results found in title search
+        if int(data['message']['header']['available']) == 0:
+            r = requests.get('http://api.musixmatch.com/ws/1.1/track.search', params={
+                             'apikey': MUSIXMATCH_API_KEY,
+                             'q_lyrics': message,
+                             's_track_rating': 'desc',
+                             'f_has_lyrics': '1'
+                             })
+            data = r.json()
+        track = data['message']['body']['track_list'][0]['track']
+        track_id = track['track_id']
+        track_name = track['track_name']
+        artist_name = track['artist_name']
+        lyrics_url = track['track_share_url']
+
+        r = requests.get('http://api.musixmatch.com/ws/1.1/track.lyrics.get', params={
+                         'apikey': MUSIXMATCH_API_KEY,
+                         'track_id': track_id
+                         })
+        data = r.json()
+        lyrics = data['message']['body']['lyrics']['lyrics_body']
+        string1 = ('Here are the lyrics of ' + track_name + ' by ' + artist_name + ':\n' + lyrics
+                   + '\n- Powered by MusiXmatch')
+        string2 = '\nFull Lyrics: ' + lyrics_url
+        output['output'] = string1 + string2
+        output['success'] = True
+    except Except:
+        error_message = 'I couldn\'t find any lyrics matching your query.'
+        error_message += '\nPlease ask me something else, like:'
+        error_message += '\n  - paradise lyrics'
+        error_message += '\n  - lyrics of the song hall of fame'
+        error_message += '\n  - What are the lyrics to see you again?'
+        output['error_msg'] = TextTemplate(error_message).get_message()
+        output['success'] = False
+    return output