IF YOU HAVE SOME TROUBLE, IT'S MAY NOT ISSUE OF THIS PROJECT. GO STACKOVERFLOW!!!

If you failed to build, go Stackoverflow. If you failed to install, go Stackoverflow. If you failed to connect to database, go Stackoverflow.

FYI, MySQL Connector/C 6.1.10 has bug. see PyMySQL#169 (comment)

Only when If you're sure it's PyMySQL's issue, report the complete steps to reproduce, from creating database.

I don't have time to investigate your issue from an incomplete code snippet.

See also: https://medium.com/@methane/why-you-must-not-ask-questions-on-github-issues-51d741d83fde