From ad25f29b7b5011cfb411880f1412e332e7911d6d Mon Sep 17 00:00:00 2001
From: Joe Jevnik <joejev@gmail.com>
Date: Mon, 13 Oct 2014 16:14:56 -0400
Subject: [PATCH] ENH: Provides aliases for the (Date|Time)RuleFactory classes
 for better Quantopian/Zipline interoperability

---
 zipline/utils/events.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/zipline/utils/events.py b/zipline/utils/events.py
index 9c1848a1..1bd42a2b 100644
--- a/zipline/utils/events.py
+++ b/zipline/utils/events.py
@@ -44,6 +44,8 @@ __all__ = [
     # Factory API
     'DateRuleFactory',
     'TimeRuleFactory',
+    'date_rules',
+    'time_rules',
     'make_eventrule',
 ]
 
@@ -494,6 +496,11 @@ class TimeRuleFactory(object):
     market_close = BeforeClose
 
 
+# Convenience aliases.
+date_rules = DateRuleFactory
+time_rules = TimeRuleFactory
+
+
 def make_eventrule(date_rule, time_rule, half_days=True):
     """
     Constructs an event rule from the factory api.