MySQL Connector/Python Release Notes
This property returns True or
False to indicate whether a transaction is
active for the connection. The value is True
regardless of whether you start a transaction using the
start_transaction()
API call or by directly executing an SQL statement such as
START
TRANSACTION or
BEGIN.
>>> cnx.start_transaction()
>>> cnx.in_transaction
True
>>> cnx.commit()
>>> cnx.in_transaction
False
in_transaction was added in MySQL Connector/Python 1.1.0.