title: In SQLAlchemy, can I create an Engine from an existing ODBC connection?
body: <p>I am working in an environment where I am given an ODBC connection, which has been created using credentials to which I don't have access (for security reasons). However I would like to access the underlying database using SQLAlchemy - so my question is, can I pass this ODBC connection to something like create_engine, or alternatively, wrap it in such a way that it looks like a SQLAlchemy connection?</p>
  
  <p>As a supplementary question (and working on the optimistic assumption that the first part can be satisfied) is there a way that I can tell SQLA what dialect to use for the underlying RDBMS?</p>
  
  <p>Thanks</p>