Add InternalError for mysqlclient disconnect

mysqlclient as of 1.3.11 changed the exception
class for a particular disconnect situation from
InterfaceError to InternalError; the disconnection
detection logic now accommodates this.

Change-Id: I294f90f794491fd363548719222d8e3008480615
Fixes: #4065
(cherry picked from commit 65680b2343ef421a62582e23e2b35293732933ad)

diff --git a/doc/build/changelog/unreleased_10/4065.rst b/doc/build/changelog/unreleased_10/4065.rst
new file mode 100644 (file)
index 0000000..375ce8c
--- /dev/null
+++ b/doc/build/changelog/unreleased_10/4065.rst
@@ -0,0 +1,9 @@
+.. change::
+    :tags: bug, mysql
+    :tickets: 4065
+    :versions: 1.2.0b3, 1.1.14
+
+    mysqlclient as of 1.3.11 changed the exception
+    class for a particular disconnect situation from 
+    InterfaceError to InternalError; the disconnection
+    detection logic now accommodates this.

diff --git a/lib/sqlalchemy/dialects/mysql/base.py b/lib/sqlalchemy/dialects/mysql/base.py
index e4599003f3772c7013b180b01c640c90cc7cf6f1..39d45c6d007005b4d011d3cf736c747ad4e84907 100644 (file)
--- a/lib/sqlalchemy/dialects/mysql/base.py
+++ b/lib/sqlalchemy/dialects/mysql/base.py
@@ -2583,7 +2583,8 @@ 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)