diff --git a/pandas_eval.py b/pandas_eval.py
index 1ba8cda..b0f197f 100644
--- a/pandas_eval.py
+++ b/pandas_eval.py
@@ -16,6 +16,8 @@ import datetime
 
 # Knowledge
 # https://www.investopedia.com/articles/technical/02/050602.asp
+# https://ntguardian.wordpress.com/2016/09/19/introduction-stock-market-data-python-1
+
 key = '0UO7Z2MVZ2YSQSVE'
 
 
@@ -43,8 +45,8 @@ def macd(data):
 
 	return ema_short - ema_long
 
-# Get stock price via data reader
 if 0:
+	# Get stock price via data reader
 	start = datetime.datetime(2016,1,1)
 	end = datetime.date.today()
 	apple = web.DataReader("AAPL", "av-monthly", start, end, api_key=key)