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opt / cloudlinux / venv / lib / python3.11 / site-packages / sqlalchemy / dialects / mysql /

?? ..
?? __init__.py(2.01 KB)
?? __pycache__
?? base.py(104.77 KB)
?? cymysql.py(2.19 KB)
?? dml.py(4.65 KB)
?? enumerated.py(11.04 KB)
?? gaerdbms.py(3.3 KB)
?? json.py(2 KB)
?? mysqlconnector.py(7.7 KB)
?? mysqldb.py(8.3 KB)
?? oursql.py(7.9 KB)
?? provision.py(1.24 KB)
?? pymysql.py(2.66 KB)
?? pyodbc.py(3.39 KB)
?? reflection.py(17.85 KB)
?? types.py(24.01 KB)
?? zxjdbc.py(3.88 KB)

Editing: gaerdbms.py

# mysql/gaerdbms.py
# Copyright (C) 2005-2021 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
r"""
.. dialect:: mysql+gaerdbms
    :name: Google Cloud SQL
    :dbapi: rdbms
    :connectstring: mysql+gaerdbms:///<dbname>?instance=<instancename>
    :url: https://developers.google.com/appengine/docs/python/cloud-sql/developers-guide

This dialect is based primarily on the :mod:`.mysql.mysqldb` dialect with
    minimal changes.

.. deprecated:: 1.0 This dialect is **no longer necessary** for
        Google Cloud SQL; the MySQLdb dialect can be used directly.
        Cloud SQL now recommends creating connections via the
        mysql dialect using the URL format

``mysql+mysqldb://root@/<dbname>?unix_socket=/cloudsql/<projectid>:<instancename>``

Pooling
-------

Google App Engine connections appear to be randomly recycled,
so the dialect does not pool connections.  The :class:`.NullPool`
implementation is installed within the :class:`_engine.Engine` by
default.

"""  # noqa

import os
import re

from sqlalchemy.util import warn_deprecated
from .mysqldb import MySQLDialect_mysqldb
from ...pool import NullPool

def _is_dev_environment():
    return os.environ.get("SERVER_SOFTWARE", "").startswith("Development/")

class MySQLDialect_gaerdbms(MySQLDialect_mysqldb):
    @classmethod
    def dbapi(cls):

warn_deprecated(
            "Google Cloud SQL now recommends creating connections via the "
            "MySQLdb dialect directly, using the URL format "
            "mysql+mysqldb://root@/<dbname>?unix_socket=/cloudsql/"
            "<projectid>:<instancename>"
        )

# from django:
        # http://code.google.com/p/googleappengine/source/
        #     browse/trunk/python/google/storage/speckle/
        # python/django/backend/base.py#118
        # see also [ticket:2649]
        # see also http://stackoverflow.com/q/14224679/34549
        from google.appengine.api import apiproxy_stub_map

if _is_dev_environment():
            from google.appengine.api import rdbms_mysqldb

return rdbms_mysqldb
        elif apiproxy_stub_map.apiproxy.GetStub("rdbms"):
            from google.storage.speckle.python.api import rdbms_apiproxy

return rdbms_apiproxy
        else:
            from google.storage.speckle.python.api import rdbms_googleapi

return rdbms_googleapi

@classmethod
    def get_pool_class(cls, url):
        # Cloud SQL connections die at any moment
        return NullPool

def create_connect_args(self, url):
        opts = url.translate_connect_args()
        if not _is_dev_environment():
            # 'dsn' and 'instance' are because we are skipping
            # the traditional google.api.rdbms wrapper
            opts["dsn"] = ""
            opts["instance"] = url.query["instance"]
        return [], opts

def _extract_error_code(self, exception):
        match = re.compile(r"^(\d+)L?:|^\((\d+)L?,").match(str(exception))
        # The rdbms api will wrap then re-raise some types of errors
        # making this regex return no matches.
        code = match.group(1) or match.group(2) if match else None
        if code:
            return int(code)

dialect = MySQLDialect_gaerdbms

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