Hello. I tried many different configurations to connect to mysql5 server using python3.2 and sqlalchemy 0.7.4 but couldn't have success. I always end with an error due to the fact that some string data is of type 'bytes' instead of 'str'.
Below are 2 test cases that both fail. The first one uses PyMySQL3-0.5 and the second one uses mysql-connector-0.3.2-devel. I don't know if I made mistakes with my configuration, or if it's a bug I should report. If I made a mistake, I'd be glad if someone could give me a link to the appropriate documentation. If it's a bug, I don't know where I should report it: sqlalchemy, mysqlconnector or pymysql project? Here are two of my many attempts. (they are also visible here: http://bpaste.net/show/21027/) >>> from sqlalchemy import create_engine >>> engine = create_engine('sqlite:///:memory:') >>> engine.execute("select 'cassé !'").fetchall() [('cassé !',)] >>> engine = create_engine('mysql+pymysql://guest@192.168.222.1/test') >>> engine.execute("select 'cassé !'").fetchall() Traceback (most recent call last): File "<input>", line 1, in <module> File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/base.py", line 2298, in execute connection = self.contextual_connect(close_with_result=True) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/base.py", line 2342, in contextual_connect self.pool.connect(), File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/pool.py", line 210, in connect return _ConnectionFairy(self).checkout() File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/pool.py", line 371, in __init__ rec = self._connection_record = pool._do_get() File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/pool.py", line 697, in _do_get con = self._create_connection() File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/pool.py", line 174, in _create_connection return _ConnectionRecord(self) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/pool.py", line 259, in __init__ pool.dispatch.first_connect.exec_once(self.connection, self) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/event.py", line 262, in exec_once self(*args, **kw) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/event.py", line 271, in __call__ fn(*args, **kw) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/strategies.py", line 167, in first_connect dialect.initialize(c) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/dialects/mysql/base.py", line 1889, in initialize default.DefaultDialect.initialize(self, connection) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/default.py", line 176, in initialize self._get_default_schema_name(connection) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/dialects/mysql/base.py", line 1854, in _get_default_schema_name return connection.execute('SELECT DATABASE()').scalar() File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/base.py", line 1405, in execute params) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/base.py", line 1582, in _execute_text statement, parameters File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/base.py", line 1639, in _execute_context context) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/default.py", line 332, in do_execute cursor.execute(statement, parameters) File "/usr/local/lib/python3.2/dist-packages/PyMySQL3-0.5-py3.2.egg/pymysql/cursors.py", line 105, in execute query = query % escaped_args TypeError: unsupported operand type(s) for %: 'bytes' and 'tuple' >>> engine = create_engine('mysql+mysqlconnector://guest@192.168.222.1/test') >>> engine.execute("select 'cassé !'").fetchall() Traceback (most recent call last): File "<input>", line 1, in <module> File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/base.py", line 2298, in execute connection = self.contextual_connect(close_with_result=True) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/base.py", line 2342, in contextual_connect self.pool.connect(), File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/pool.py", line 210, in connect return _ConnectionFairy(self).checkout() File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/pool.py", line 371, in __init__ rec = self._connection_record = pool._do_get() File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/pool.py", line 697, in _do_get con = self._create_connection() File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/pool.py", line 174, in _create_connection return _ConnectionRecord(self) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/pool.py", line 259, in __init__ pool.dispatch.first_connect.exec_once(self.connection, self) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/event.py", line 262, in exec_once self(*args, **kw) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/event.py", line 271, in __call__ fn(*args, **kw) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/strategies.py", line 167, in first_connect dialect.initialize(c) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/dialects/mysql/base.py", line 1889, in initialize default.DefaultDialect.initialize(self, connection) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/default.py", line 176, in initialize self._get_default_schema_name(connection) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/dialects/mysql/base.py", line 1854, in _get_default_schema_name return connection.execute('SELECT DATABASE()').scalar() File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/base.py", line 1405, in execute params) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/base.py", line 1582, in _execute_text statement, parameters File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/base.py", line 1665, in _execute_context result = context.get_result_proxy() File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/default.py", line 634, in get_result_proxy return base.ResultProxy(self) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/base.py", line 2723, in __init__ self._init_metadata() File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/base.py", line 2730, in _init_metadata self._metadata = ResultMetaData(self, metadata) File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.7.4-py3.2.egg/sqlalchemy/engine/base.py", line 2608, in __init__ if keymap.setdefault(name.lower(), rec) is not rec: TypeError: unhashable type: 'bytearray' -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. 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