Spotify.py

# install spotipy in your command line 
pip install spotipy --upgrade

# import spotipy to set up your client account
from spotipy.oauth2 import SpotifyClientCredentials
import spotipy

# copy your client id and secret key on your spotify dashboard
# set them up using spotipy client credentials object to let spotipy retrive data by your query
client_id="your_id"
client_secret = "your_secret"

client_credentials_manager = SpotifyClientCredentials(client_id=client_id, client_secret=client_secret)
sp = spotipy.Spotify(client_credentials_manager = client_credentials_manager)

# sp.search() will collect JSON data and save the values you need through a nested loop into arrays.
# Note that Spotify has set the maximum offset to 10,000. 
track_id=[]
artist=[]
title=[]
url=[]
for i in range(0,n,50):
  results = sp.search(q='genre:' + genre, type='track',offset=i,limit=50)
  tracks = results['tracks']['items']
  for track in tracks:
      if track['preview_url'] is not None:
        track_id.append(track['id'])
        artist.append(track['artists'][0]['name'])
        title.append(track['name'])
        url.append(track['preview_url']+'.wav')
      else:
          pass

# Load Data into Pandas DataFrame        
df_gen = pd.DataFrame({'artist':artist,'title':title,'genre':genre,'id':track_id,'url':url})