[Sqlalchemy-tickets] Issue #4065: mysqlclient added internalerror for the interfaceerror issue (zzzeek/sqlalchemy)

[Michael B. <iss...@bi...>]

New issue 4065: mysqlclient added internalerror for the interfaceerror issue
https://bitbucket.org/zzzeek/sqlalchemy/issues/4065/mysqlclient-added-internalerror-for-the

Michael Bayer:

https://github.com/PyMySQL/mysqlclient-python/issues/202

means we need this for reconnect tests to pass:

diff --git a/lib/sqlalchemy/dialects/mysql/base.py b/lib/sqlalchemy/dialects/mysql/base.py
index 5b01b2c1f..e8cfcbae4 100644
--- a/lib/sqlalchemy/dialects/mysql/base.py
+++ b/lib/sqlalchemy/dialects/mysql/base.py
@@ -1785,7 +1785,7 @@ class MySQLDialect(default.DefaultDialect):
                           self.dbapi.ProgrammingError)):
             return self._extract_error_code(e) in \
                 (2006, 2013, 2014, 2045, 2055)
-        elif isinstance(e, self.dbapi.InterfaceError):
+        elif isinstance(e, (self.dbapi.InterfaceError, self.dbapi.InternalError)):
             # if underlying connection is closed,
             # this is the error you get
             return "(0, '')" in str(e)

might as well backport to 1.0.