Fixed get_id() bug per Stephen's suggestion. Changed handle_data() back to handle_frame().

zipline/optimize/algorithms.py

@@ -32,7 +32,7 @@ class BuySellAlgorithm():
     def set_portfolio(self, portfolio):
         self.portfolio = portfolio
 
-    def handle_data(self, frame):
+    def handle_frame(self, frame):
         order_size = self.buy_or_sell * (self.amount - (self.offset**2))
         self.order(self.sid, order_size)
 

zipline/sources.py

@@ -98,6 +98,14 @@ class SpecificEquityTrades(TradeDataSource):
     def get_type(self):
         zp.COMPONENT_TYPE.SOURCE
 
+    @property
+    def get_id(self):
+        """
+        The descriptive name of the component.
+        """
+        # Prevents the bug that Thomas ran into
+        return "Unique ID"
+
 
     def do_work(self):
         if(len(self.event_list) == 0):