code: def urban_lookup(word):
  	'''
  	Return a Urban Dictionary definition for a word or None if no result was
  	found.
  	'''
  	url = "http://api.urbandictionary.com/v0/define"
  	params = dict(term=word)
  	resp = requests.get(url, params=params)
  	resp.raise_for_status()
  	res = resp.json()
  	if not res['list']:
  		return
  	return res['list'][0]['definition'f urban_lookup(word):
  	'''
  	Return a Urban Dictionary definition for a word or None if no result was
  	found.
  	'''
  	url = "http://api.urbandictionary.com/v0/define"
  	params = dict(term=word)
  	resp = requests.get(url, params=params)
  	resp.raise_for_status()
  	res = resp.json()
  	if not res['list']:
  		return
  	return res['list'][0]['definition']
docs: Return a Urban Dictionary definition for a word or None if no result was
  	found.