python cx oracle expecting string, unicode or buffer object

Question

I am trying to run following code snippet in python to connect to oracle, but constantly running into following error. I have tried a lot of combinations but it doesn\'t see

Answer 1

If you are running into this problem, most likely the cause is that you are not passing in arguments required by the underlying dbapi call.

In my case I added additional arguments of user, password and dsn to the create_engine call along with existing ones, which got passed to cx_oracle call and it worked.

something like this should work

create_engine(u'oracle+cx_oracle://localhost:1521/orcl', echo=True, user='<>', password='<>', dsn='<>')