From: Mike Bayer Date: Sat, 11 Dec 2010 23:01:31 +0000 (-0500) Subject: hey we have .. note:: for notes, duh X-Git-Tag: rel_0_7b1~177 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=be66013111e681dbfc1733fedbba0f101727b6b9;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git hey we have .. note:: for notes, duh --- diff --git a/lib/sqlalchemy/types.py b/lib/sqlalchemy/types.py index c66624b5f8..434fb07c39 100644 --- a/lib/sqlalchemy/types.py +++ b/lib/sqlalchemy/types.py @@ -1013,37 +1013,37 @@ class Numeric(_DateAffinity, TypeEngine): ``decimal.Decimal`` objects by default, applying conversion as needed. - Note that the `cdecimal `_ library - is a high performing alternative - to Python's built-in ``decimal.Decimal`` type, which performs very poorly - in high volume situations. SQLAlchemy 0.7 is tested against ``cdecimal`` - and supports it fully. The type is not necessarily supported by - DBAPI implementations however, most of which contain an import - for plain ``decimal`` in their source code, even though - some such as psycopg2 provide hooks for alternate adapters. - SQLAlchemy imports ``decimal`` globally as well. While the - alternate ``Decimal`` class can be patched into SQLA's ``decimal`` module, - overall the most straightforward and foolproof way to use - "cdecimal" given current DBAPI and Python support is to patch it directly - into sys.modules before anything else is imported:: + .. note:: The `cdecimal `_ library + is a high performing alternative to Python's built-in + ``decimal.Decimal`` type, which performs very poorly in high volume + situations. SQLAlchemy 0.7 is tested against ``cdecimal`` and supports + it fully. The type is not necessarily supported by DBAPI + implementations however, most of which contain an import for plain + ``decimal`` in their source code, even though some such as psycopg2 + provide hooks for alternate adapters. SQLAlchemy imports ``decimal`` + globally as well. While the alternate ``Decimal`` class can be patched + into SQLA's ``decimal`` module, overall the most straightforward and + foolproof way to use "cdecimal" given current DBAPI and Python support + is to patch it directly into sys.modules before anything else is + imported:: - import sys - import cdecimal - sys.modules["decimal"] = cdecimal + import sys + import cdecimal + sys.modules["decimal"] = cdecimal - While the global patch is a little ugly, it's particularly - important to use just one decimal library at a time since - Python Decimal and cdecimal Decimal objects - are not currently compatible *with each other*:: + While the global patch is a little ugly, it's particularly + important to use just one decimal library at a time since + Python Decimal and cdecimal Decimal objects + are not currently compatible *with each other*:: - >>> import cdecimal - >>> import decimal - >>> decimal.Decimal("10") == cdecimal.Decimal("10") - False - - SQLAlchemy will provide more natural support of - cdecimal if and when it becomes a standard part of Python - installations and is supported by all DBAPIs. + >>> import cdecimal + >>> import decimal + >>> decimal.Decimal("10") == cdecimal.Decimal("10") + False + + SQLAlchemy will provide more natural support of + cdecimal if and when it becomes a standard part of Python + installations and is supported by all DBAPIs. """