old_contents: from django.conf import settings
  from purl import Template
  import requests
  
  from .models import SimilarResponse
  
  
  API_URL = Template("http://developer.echonest.com/api/v4/artist/similar"
                     "?api_key=%s&results=100&name={name}"
                     % settings.ECHONEST_API_KEY)
  
  
  def get_similar_from_api(name):
      url = API_URL.expand({'name': name})
      r = requests.get(url)
      r.raise_for_status()
      return SimilarResponse.objects.create(name=name, response=r.json())
  
  
  def get_similar_from_db(name):
      return SimilarResponse.objects.get(normalized_name=name.upper())
  
  
  def get_similar(name):
      try:
          response = get_similar_from_db(name)
      except SimilarResponse.DoesNotExist:
          response = get_similar_from_api(name)
      return response.artist_names
  
new_contents: from django.conf import settings
  from purl import Template
  import requests
  
  from .models import SimilarResponse
  
  
  API_URL = Template("http://developer.echonest.com/api/v4/artist/similar"
                     "?api_key=%s&results=100&name={name}"
                     % settings.ECHONEST_API_KEY)
  
  
  def get_similar_from_api(name):
      url = API_URL.expand({'name': name})
      r = requests.get(str(url))
      r.raise_for_status()
      return SimilarResponse.objects.create(name=name, response=r.json())
  
  
  def get_similar_from_db(name):
      return SimilarResponse.objects.get(normalized_name=name.upper())
  
  
  def get_similar(name):
      try:
          response = get_similar_from_db(name)
      except SimilarResponse.DoesNotExist:
          response = get_similar_from_api(name)
      return response.artist_names
  
subject: Fix bug in The Echo Nest API call