I am new to Sqlalchemy and started to check it with the tutorial.
The database I have to use is Informix (10.3). But with that database
I get the
"TypeError: __init__() got multiple values for keyword argument
'column_keys'"
Exception Traceback below. Using Postgres it runs fine.
Any idea for a work-around or fix?
Thanks,
Bernd
----------- Here is what I copied from the tutorial so far
----------------------
import sqlalchemy
from sqlalchemy import create_engine
#no Exception with this engine
#engine =
create_engine('postgres://bernd:[EMAIL PROTECTED]/testdb',echo=True)
engine =
create_engine('informix://bernd:[EMAIL PROTECTED]/testdb',echo=True)
from sqlalchemy import Table, Column, Integer, String, MetaData, ForeignKey
metadata = MetaData()
users_table = Table('users', metadata,
Column('id', Integer, primary_key=True),
Column('name', String(40)),
Column('fullname', String(100)),
Column('password', String(15))
)
metadata.create_all(engine)
class User(object):
def __init__(self, name, fullname, password):
self.name = name
self.fullname = fullname
self.password = password
def __repr__(self):
return "<User('%s','%s', '%s')>" % (self.name, self.fullname,
self.password)
from sqlalchemy.orm import mapper
mapper(User, users_table)
ed_user = User('ed', 'Ed Jones', 'edspassword')
from sqlalchemy.orm import sessionmaker
Session = sessionmaker(bind=engine, autoflush=True, transactional=True)
session = Session()
session.save(ed_user)
session.commit()
------------- Exception thrown when Informix is used
-----------------------------------
Traceback (most recent call last):
File "tutorial.py", line 43, in <module>
session.commit()
File
"C:\Python25\lib\site-packages\sqlalchemy-0.4.3-py2.5.egg\sqlalchemy\orm\session.py",
line 544, in commit
self.transaction.commit()
File
"C:\Python25\lib\site-packages\sqlalchemy-0.4.3-py2.5.egg\sqlalchemy\orm\session.py",
line 250, in commit
self._prepare_impl()
File
"C:\Python25\lib\site-packages\sqlalchemy-0.4.3-py2.5.egg\sqlalchemy\orm\session.py",
line 234, in _prepare_impl
self.session.flush()
File
"C:\Python25\lib\site-packages\sqlalchemy-0.4.3-py2.5.egg\sqlalchemy\orm\session.py",
line 764, in flush
self.uow.flush(self, objects)
File
"c:\python25\lib\site-packages\SQLAlchemy-0.4.3-py2.5.egg\sqlalchemy\orm\unitofwork.py",
line 215, in flush
flush_context.execute()
File
"c:\python25\lib\site-packages\SQLAlchemy-0.4.3-py2.5.egg\sqlalchemy\orm\unitofwork.py",
line 437, in execute
UOWExecutor().execute(self, tasks)
File
"c:\python25\lib\site-packages\SQLAlchemy-0.4.3-py2.5.egg\sqlalchemy\orm\unitofwork.py",
line 927, in execute
self.execute_save_steps(trans, task)
File
"c:\python25\lib\site-packages\SQLAlchemy-0.4.3-py2.5.egg\sqlalchemy\orm\unitofwork.py",
line 942, in execute_save_steps
self.save_objects(trans, task)
File
"c:\python25\lib\site-packages\SQLAlchemy-0.4.3-py2.5.egg\sqlalchemy\orm\unitofwork.py",
line 933, in save_objects
task.mapper._save_obj(task.polymorphic_tosave_objects, trans)
File
"c:\python25\lib\site-packages\SQLAlchemy-0.4.3-py2.5.egg\sqlalchemy\orm\mapper.py",
line 1106, in _save_obj
c = connection.execute(statement.values(value_params), params)
File
"c:\python25\lib\site-packages\SQLAlchemy-0.4.3-py2.5.egg\sqlalchemy\engine\base.py",
line 846, in execute
return Connection.executors[c](self, object, multiparams, params)
File
"c:\python25\lib\site-packages\SQLAlchemy-0.4.3-py2.5.egg\sqlalchemy\engine\base.py",
line 897, in execute_clauseelement
return self._execute_compiled(elem.compile(dialect=self.dialect,
column_keys=keys, inline=len(params) > 1), distilled_params=params)
File
"C:\Python25\lib\site-packages\sqlalchemy-0.4.3-py2.5.egg\sqlalchemy\sql\expression.py",
line 1043, in compile
compiler = dialect.statement_compiler(dialect, self,
column_keys=column_keys, inline=inline)
File
"C:\Python25\lib\site-packages\sqlalchemy-0.4.3-py2.5.egg\sqlalchemy\databases\informix.py",
line 374, in __init__
compiler.DefaultCompiler.__init__( self , dialect , statement ,
parameters , **kwargs )
TypeError: __init__() got multiple values for keyword argument 'column_keys'
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