Implement context manager for Cursor object to enable with statement.
Currently the with statement can't be used for cursors because they don't implement a context manager, i.e. the __enter__ and __exit__ attributes meaning that the following code will fail:

with conn.cursor() as c: c.execute("SELECT 'test' from dual") result = c.fetchall() print(result) File “/Users/gvenzl/test/test.py”, line 23, in test with conn.cursor() as c: AttributeError: __exit__

It would make sense to enable cursor object to be used in with statements that take care of closing the cursors automatically.