Extract Class - migrated update to TimeSeries

Siddharta Govindaraj · Siddharta Govindaraj · commit a044eb1cb330 · 2015-03-23T12:27:19.000+05:30
diff --git a/stock_alerter/stock.py b/stock_alerter/stock.py
@@ -32,6 +32,7 @@ def update(self, timestamp, price):
         if price < 0:
             raise ValueError("price should not be negative")
         bisect.insort_left(self.price_history, PriceEvent(timestamp, price))
+        self.history.update(timestamp, price)
 
     def is_increasing_trend(self):
         return self.price_history[-3].price < \
diff --git a/stock_alerter/timeseries.py b/stock_alerter/timeseries.py
@@ -1,2 +1,12 @@
+import bisect
+import collections
+
+Update = collections.namedtuple("Update", ["timestamp", "value"])
+
+
 class TimeSeries:
-    pass
+    def __init__(self):
+        self.series = []
+
+    def update(self, timestamp, value):
+        bisect.insort_left(self.series, Update(timestamp, value))
