Merge pull request #1027 from quantopian/add_buyback_auth_to_factors

MAINT: add buyback auth to factors init.

tests/pipeline/test_buyback_auth.py

@@ -19,15 +19,20 @@ from zipline.pipeline.common import(
     PREVIOUS_BUYBACK_SHARE_COUNT,
     SHARE_COUNT_FIELD_NAME,
     SID_FIELD_NAME,
-    TS_FIELD_NAME)
-from zipline.pipeline.data import (CashBuybackAuthorizations,
-                                   ShareBuybackAuthorizations)
+    TS_FIELD_NAME
+)
+from zipline.pipeline.data import (
+    CashBuybackAuthorizations,
+    ShareBuybackAuthorizations
+)
 from zipline.pipeline.factors.events import (
     BusinessDaysSinceCashBuybackAuth,
     BusinessDaysSinceShareBuybackAuth
 )
-from zipline.pipeline.loaders.buyback_auth import \
-    CashBuybackAuthorizationsLoader, ShareBuybackAuthorizationsLoader
+from zipline.pipeline.loaders.buyback_auth import (
+    CashBuybackAuthorizationsLoader,
+    ShareBuybackAuthorizationsLoader
+)
 from zipline.pipeline.loaders.blaze import (
     BlazeCashBuybackAuthorizationsLoader,
     BlazeShareBuybackAuthorizationsLoader,

zipline/pipeline/factors/__init__.py

@@ -4,8 +4,10 @@ from .factor import (
 )
 from .latest import Latest
 from .events import (
-    BusinessDaysSincePreviousEarnings,
+    BusinessDaysSinceCashBuybackAuth,
     BusinessDaysUntilNextEarnings,
+    BusinessDaysSincePreviousEarnings,
+    BusinessDaysSinceShareBuybackAuth,
 )
 from .technical import (
     AverageDollarVolume,
@@ -22,8 +24,10 @@ from .technical import (
 )
 
 __all__ = [
-    'BusinessDaysSincePreviousEarnings',
+    'BusinessDaysSinceCashBuybackAuth',
     'BusinessDaysUntilNextEarnings',
+    'BusinessDaysSincePreviousEarnings',
+    'BusinessDaysSinceShareBuybackAuth',
     'CustomFactor',
     'AverageDollarVolume',
     'EWMA',