mirror of
https://github.com/sqlalchemy/sqlalchemy.git
synced 2026-06-11 01:48:06 -04:00
Mike Bayer
a4703917d8
passed to Table(); since we want to support external dialects and also want to support args without a certain dialect being installed, it only checks the format of the arg now, rather than looking for that dialect in sqlalchemy.dialects.
46 lines
1.0 KiB
Python
46 lines
1.0 KiB
Python
# dialects/__init__.py
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# Copyright (C) 2005-2013 the SQLAlchemy authors and contributors <see AUTHORS file>
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#
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# This module is part of SQLAlchemy and is released under
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# the MIT License: http://www.opensource.org/licenses/mit-license.php
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__all__ = (
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'drizzle',
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'firebird',
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# 'informix',
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'mssql',
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'mysql',
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'oracle',
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'postgresql',
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'sqlite',
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'sybase',
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)
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from .. import util
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def _auto_fn(name):
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"""default dialect importer.
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plugs into the :class:`.PluginLoader`
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as a first-hit system.
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"""
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if "." in name:
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dialect, driver = name.split(".")
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else:
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dialect = name
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driver = "base"
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try:
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module = __import__('sqlalchemy.dialects.%s' % (dialect, )).dialects
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except ImportError:
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return None
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module = getattr(module, dialect)
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if hasattr(module, driver):
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module = getattr(module, driver)
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return lambda: module.dialect
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else:
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return None
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registry = util.PluginLoader("sqlalchemy.dialects", auto_fn=_auto_fn)
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