MAINT: Share constant across modules

zipline/assets/asset_writer.py

@@ -13,6 +13,8 @@ import sqlalchemy as sa
 from zipline.errors import SidAssignmentError
 from zipline.assets._assets import Asset
 
+SQLITE_MAX_VARIABLE_NUMBER = 999
+
 # Define a namedtuple for use with the load_data and _load_data methods
 AssetData = namedtuple('AssetData', 'equities futures exchanges root_symbols')
 
@@ -164,7 +166,7 @@ class AssetDBWriter(with_metaclass(ABCMeta)):
         Returns data in standard format.
 
     """
-    CHUNK_SIZE = 999
+    CHUNK_SIZE = SQLITE_MAX_VARIABLE_NUMBER
 
     def __init__(self, equities=None, futures=None, exchanges=None,
                  root_symbols=None):

zipline/pipeline/loaders/_adjustments.pyx

@@ -28,6 +28,9 @@ ctypedef object DatetimeIndex_t
 ctypedef object Int64Index_t
 
 from zipline.lib.adjustment import Float64Multiply
+from zipline.assets.asset_writer import (
+    SQLITE_MAX_VARIABLE_NUMBER as SQLITE_MAX_IN_STATEMENT,
+)
 
 _SID_QUERY_TEMPLATE = """
 SELECT DISTINCT sid FROM {0}
@@ -44,7 +47,6 @@ FROM {0}
 WHERE sid IN ({1}) AND effective_date >= {2} AND effective_date <= {3}
 """
 
-cdef int SQLITE_MAX_IN_STATEMENT = 999
 EPOCH = Timestamp(0, tz='UTC')
 
 cdef set _get_sids_from_table(object db,