> On Mar 21, 3:31 pm, Michael Bayer <mike...@zzzcomputing.com> wrote:
>
> > Yeah psycopg2 with python 3 / sqlalchemy is not supported yet. The python
> > 3 supported version of psycopg2 came out like, in the past two weeks. It
> > will be 0.7 where its supported at all, hopefully soon as its a matter of
> > setting up some flags in the dialects. In the meantime if you want to
> > start working with pg + SQLA + py3k you can try the python 3 version of
> > pg8000 - its not as nice or anywhere near as fast as psycopg2 but it works
> > in at least a rudimentary fashion.
>
> > Also Python 3.2 is the latest version of py3k and actually has some fairly
> > dramatic behavioral differences vs. 3.1. If you want to work with 3.2 and
> > let us know what quirks you find...
Below is one (Python 3.2, sqlalchemy 0.7b4 (downloaded snapshot 10min
ago), Debian). Best wishes, Hans-Martin
Traceback (most recent call last):
File "src/library/db_connect.py", line 60, in existing_schemata
tmp = session.execute("""SELECT schema_name from
information_schema.schemata;""")
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/orm/session.py", line 758, in execute
return self._connection_for_bind(bind,
close_with_result=True).execute(
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/orm/session.py", line 694, in _connection_for_bind
return self.transaction._connection_for_bind(engine)
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/orm/session.py", line 246, in _connection_for_bind
conn = bind.contextual_connect()
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/engine/base.py", line 2062, in contextual_connect
self.pool.connect(),
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/pool.py", line 208, in connect
return _ConnectionFairy(self).checkout()
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/pool.py", line 369, in __init__
rec = self._connection_record = pool._do_get()
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/pool.py", line 695, in _do_get
con = self._create_connection()
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/pool.py", line 173, in _create_connection
return _ConnectionRecord(self)
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/pool.py", line 257, in __init__
pool.dispatch.first_connect.exec_once(self.connection, self)
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/event.py", line 227, in exec_once
self(*args, **kw)
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/event.py", line 236, in __call__
fn(*args, **kw)
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/engine/strategies.py", line 162, in first_connect
dialect.initialize(c)
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/dialects/postgresql/base.py", line 793, in initialize
super(PGDialect, self).initialize(connection)
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/engine/default.py", line 171, in initialize
self._get_server_version_info(connection)
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/dialects/postgresql/base.py", line 964, in
_get_server_version_info
v = connection.execute("select version()").scalar()
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/engine/base.py", line 1259, in execute
params)
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/engine/base.py", line 1436, in _execute_text
statement, parameters
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/engine/base.py", line 1519, in _execute_context
result = context.get_result_proxy()
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/dialects/postgresql/psycopg2.py", line 198, in
get_result_proxy
return base.ResultProxy(self)
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/engine/base.py", line 2420, in __init__
self._init_metadata()
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/engine/base.py", line 2427, in _init_metadata
self._metadata = ResultMetaData(self, metadata)
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/engine/base.py", line 2283, in __init__
colname = dialect._description_decoder(colname)
File "lib/python3.2/site-packages/SQLAlchemy-0.7b4dev-py3.2.egg/
sqlalchemy/processors.py", line 69, in process
return decoder(value, errors)[0]
File "lib/python3.2/encodings/utf_8.py", line 16, in decode
return codecs.utf_8_decode(input, errors, True)
TypeError: 'str' does not support the buffer interface
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