60 lines
1.3 KiB
Python
60 lines
1.3 KiB
Python
|
# dialects/__init__.py
|
||
|
|
# Copyright (C) 2005-2019 the SQLAlchemy authors and contributors
|
||
|
|
# <see AUTHORS file>
|
||
|
|
#
|
||
|
|
# This module is part of SQLAlchemy and is released under
|
||
|
|
# the MIT License: http://www.opensource.org/licenses/mit-license.php
|
||
|
|
|
||
|
|
__all__ = (
|
||
|
|
"firebird",
|
||
|
|
"mssql",
|
||
|
|
"mysql",
|
||
|
|
"oracle",
|
||
|
|
"postgresql",
|
||
|
|
"sqlite",
|
||
|
|
"sybase",
|
||
|
|
)
|
||
|
|
|
||
|
|
from .. import util
|
||
|
|
|
||
|
|
|
||
|
|
_translates = {"postgres": "postgresql"}
|
||
|
|
|
||
|
|
|
||
|
|
def _auto_fn(name):
|
||
|
|
"""default dialect importer.
|
||
|
|
|
||
|
|
plugs into the :class:`.PluginLoader`
|
||
|
|
as a first-hit system.
|
||
|
|
|
||
|
|
"""
|
||
|
|
if "." in name:
|
||
|
|
dialect, driver = name.split(".")
|
||
|
|
else:
|
||
|
|
dialect = name
|
||
|
|
driver = "base"
|
||
|
|
|
||
|
|
if dialect in _translates:
|
||
|
|
translated = _translates[dialect]
|
||
|
|
util.warn_deprecated(
|
||
|
|
"The '%s' dialect name has been "
|
||
|
|
"renamed to '%s'" % (dialect, translated)
|
||
|
|
)
|
||
|
|
dialect = translated
|
||
|
|
try:
|
||
|
|
module = __import__("sqlalchemy.dialects.%s" % (dialect,)).dialects
|
||
|
|
except ImportError:
|
||
|
|
return None
|
||
|
|
|
||
|
|
module = getattr(module, dialect)
|
||
|
|
if hasattr(module, driver):
|
||
|
|
module = getattr(module, driver)
|
||
|
|
return lambda: module.dialect
|
||
|
|
else:
|
||
|
|
return None
|
||
|
|
|
||
|
|
|
||
|
|
registry = util.PluginLoader("sqlalchemy.dialects", auto_fn=_auto_fn)
|
||
|
|
|
||
|
|
plugins = util.PluginLoader("sqlalchemy.plugins")
|