MAINT: Pluralize top-level term namespaces.

zipline.pipeline.factor -> zipline.pipeline.factors
zipline.pipeline.filter -> zipline.pipeline.filters

tests/pipeline/test_engine.py

@@ -40,7 +40,7 @@ from zipline.pipeline.loaders.equity_pricing_loader import (
 )
 from zipline.pipeline.engine import SimplePipelineEngine
 from zipline.pipeline import CustomFactor
-from zipline.pipeline.factor.technical import (
+from zipline.pipeline.factors import (
     MaxDrawdown,
     SimpleMovingAverage,
 )

tests/pipeline/test_pipeline_algo.py

@@ -42,7 +42,7 @@ from zipline.errors import (
 )
 from zipline.finance import trading
 from zipline.pipeline import Pipeline
-from zipline.pipeline.factor.technical import VWAP
+from zipline.pipeline.factors import VWAP
 from zipline.pipeline.data import USEquityPricing
 from zipline.pipeline.loaders.frame import DataFrameLoader, MULTIPLY
 from zipline.pipeline.loaders.equity_pricing_loader import (

zipline/pipeline/__init__.py

@@ -1,12 +1,13 @@
 from .classifier import Classifier
-from .factor import Factor, CustomFactor
-from .filter import Filter
+from .factors import Factor, CustomFactor
+from .filters import Filter
 from .term import Term
 from .graph import TermGraph
 from .pipeline import Pipeline
 
 __all__ = [
     'Classifier',
+    'CustomFactor',
     'Factor',
     'Filter',
     'Pipeline',

zipline/pipeline/data/dataset.py

@@ -7,7 +7,7 @@ from six import (
 )
 
 from zipline.pipeline.term import Term
-from zipline.pipeline.factor import Latest
+from zipline.pipeline.factors import Latest
 
 
 class Column(object):

zipline/pipeline/factors/factor.py

@@ -33,7 +33,7 @@ from zipline.pipeline.expression import (
     NUMEXPR_MATH_FUNCS,
     UNARY_OPS,
 )
-from zipline.pipeline.filter import (
+from zipline.pipeline.filters import (
     NumExprFilter,
     PercentileFilter,
 )
@@ -273,7 +273,7 @@ class Factor(Term):
 
         Returns
         -------
-        filter : zipline.pipeline.filter.Filter
+        filter : zipline.pipeline.Filter
         """
         return self.rank(ascending=False, mask=mask) <= N
 
@@ -288,7 +288,7 @@ class Factor(Term):
 
         Returns
         -------
-        filter : zipline.pipeline.filter.Filter
+        filter : zipline.pipeline.Filter
         """
         return self.rank(ascending=True, mask=mask) <= N
 
@@ -308,12 +308,12 @@ class Factor(Term):
 
         Returns
         -------
-        out : zipline.pipeline.filter.PercentileFilter
+        out : zipline.pipeline.filters.PercentileFilter
             A new filter that will compute the specified percentile-range mask.
 
         See Also
         --------
-        zipline.pipeline.filter.PercentileFilter
+        zipline.pipeline.filters.PercentileFilter
         """
         return PercentileFilter(
             self,

zipline/pipeline/filters/__init__.py

@@ -0,0 +1,7 @@
+from .filter import Filter, NumExprFilter, PercentileFilter
+
+__all__ = [
+    'Filter',
+    'NumExprFilter',
+    'PercentileFilter',
+]

zipline/pipeline/pipeline.py

@@ -1,7 +1,7 @@
 from zipline.utils.preprocess import expect_types, optional
 
 from .term import Term
-from .filter import Filter
+from .filters import Filter
 from .graph import TermGraph
 
 
@@ -121,8 +121,8 @@ class Pipeline(object):
 
         Parameter
         ---------
-        filter : zipline.pipeline.filter.Filter
-            The screen to apply.
+        filter : zipline.pipeline.Filter
+            The filter to apply as a screen.
         overwrite : bool
             Whether to overwrite any existing screen.  If overwrite is False
             and self.screen is not None, we raise an error.