- support for cdecimal

- add --with-cdecimal flag to tests, monkeypatches cdecimal in
- fix mssql/pyodbc.py to not use private '_int' accessor in decimal conversion
routines
- pyodbc version 2.1.8 is needed for cdecimal in any case as
previous versions also called '_int', 2.1.8 adds the same string
logic as our own dialect, so that logic is skipped for modern
pyodbc version
- make the imports for "Decimal" consistent across the whole lib.  not sure
yet how we should be importing "Decimal" or what the best way forward
is that would allow a clean user-invoked swap of cdecimal; for now,
added docs suggesting a global monkeypatch - the two decimal libs
are not compatible with each other so any chance of mixing produces
serious issues.  adding adapters to DBAPIs tedious and adds in-python
overhead.  suggestions welcome on how we should be doing
Decimal/cdecimal.

1 files changed, 2 insertions, 2 deletions

diff --git a/test/aaa_profiling/test_memusage.py b/test/aaa_profiling/test_memusage.py
index 53d7ff2e4..26b6c7df4 100644
--- a/test/aaa_profiling/test_memusage.py
+++ b/test/aaa_profiling/test_memusage.py
@@ -14,7 +14,7 @@ from sqlalchemy.sql import column
 from sqlalchemy.processors import to_decimal_processor_factory, \
     to_unicode_processor_factory
 from test.lib.util import gc_collect
-from decimal import Decimal as _python_Decimal
+from sqlalchemy.util.compat import decimal
 import gc
 import weakref
 from test.orm import _base
@@ -580,7 +580,7 @@ class MemUsageTest(EnsureZeroed):
     def test_DecimalResultProcessor_process(self):
         @profile_memory
         def go():
-            to_decimal_processor_factory(_python_Decimal, 10)(1.2)
+            to_decimal_processor_factory(decimal.Decimal, 10)(1.2)
         go()
 
     @testing.requires.cextensions