Changes in MySQL Connector/Python 8.0.18 (2019-10-14, General Availability)

• Functionality Added or Changed

• Bugs Fixed

Functionality Added or Changed

• Connector/Python connections now set CAN_HANDLE_EXPIRED_PASSWORDS to indicate it can handle sandbox mode for expired passwords. This indicates that Connector/Python does not execute SET commands by a connection with an expired password, an operation that's disallowed by MySQL Server 8.0.18 and higher. (Bug #95263, Bug #29743839, WL #13335)

• Connector/Python failed to install using the macOS DMG. (Bug #93492, Bug #29018765)

• Added Python 3.8 support. (WL #13194)

• On Windows, added platform dependent MSI installers that install and update Connector/Python for all supported Python versions on the system. Downloading and installing separate packages for each version is no longer required. (WL #13330)

Bugs Fixed

• The /usr/lib/mysqlx folder was not created after executing setup.py from commercial packages. (Bug #29959309)

• A table scan for a float using the C Extension caused a memory leak. (Bug #29909157)

• Added read_default_file as an alias for option_files to increase MySQLdb compatibility. (Bug #25349794, Bug #84389)

• Connector/Python 8.0.17 does not properly negotiate the highest TLS protocol version supported by both the client and server. As such, because MySQL 5.6/5.7 platform packages (DEB and RPM) include YaSSL prior to 5.6.45/5.7.27, and YaSSL only supports up to TLS 1.1, systems setting a minimum TLS protocol version above 1.1 (such as Debian 10 that sets MinProtocol=TLSv1.2) do not function with Connector/Python 8.0.17.

  As a workaround, the wheel (pip) packages function properly as they are built using glibc and bundle OpenSSL instead of YaSSL.

  Connector/Python 8.0.18 adds a tls-versions option to define the TLS version to use.