title: having trouble getting for loop to work
body: <p>currently using python3</p>
  
  <p>I'm trying to creating a function to pull the prices of cryptocurrencies and have them sent to my phone. I successfully got everything downloaded and working for bitcoin, but the other currencies in my dictionary aren't pulling correctly. Any help would be greatly appreciated. </p>
  
  <pre><code>client = Client(api_key = 'insert coinbase api key', api_secret='insert coinbase api secret', api_version = '2017-12-13')   
  
  
  def buyPrice():
      priceDict ={ 'BTC-USD': '', 'ETH-USD': '', 'LTC-USD': ''}
      for key in priceDict:
          if priceDict[key] == '':
              current_price = client.get_buy_price(currency_pair =priceDict[key])
              priceDict[key] = current_price['amount']
          else:
              continue
      return priceDict
  buyPrice()
  </code></pre>
  
  <p>ex output:</p>
  
  <pre><code>{'BTC-USD': '18897.59', 'ETH-USD': '18897.59', 'LTC-USD': '18897.59'}
  </code></pre>