Convert all databases modules to python3 and 2.4 syntax (#3688)

lib/ansible/modules/database/mysql/mysql_variables.py

@@ -109,7 +109,8 @@ def setvariable(cursor, mysqlvar, value):
         cursor.execute(query + "%s", (value,))
         cursor.fetchall()
         result = True
-    except Exception, e:
+    except Exception:
+        e = get_exception()
         result = str(e)
     return result
 
@@ -153,7 +154,8 @@ def main():
     try:
         cursor = mysql_connect(module, user, password, config_file, ssl_cert, ssl_key, ssl_ca, db,
                                connect_timeout=connect_timeout)
-    except Exception, e:
+    except Exception:
+        e = get_exception()
         if os.path.exists(config_file):
             module.fail_json(msg="unable to connect to database, check login_user and login_password are correct or %s has the credentials. Exception message: %s" % (config_file, e))
         else:
@@ -172,7 +174,8 @@ def main():
             module.exit_json(msg="Variable already set to requested value", changed=False)
         try:
             result = setvariable(cursor, mysqlvar, value_wanted)
-        except SQLParseError, e:
+        except SQLParseError:
+            e = get_exception()
             result = str(e)
         if result is True:
             module.exit_json(msg="Variable change succeeded prev_value=%s" % value_actual, changed=True)
@@ -184,4 +187,4 @@ from ansible.module_utils.basic import *
 from ansible.module_utils.database import *
 from ansible.module_utils.mysql import *
 if __name__ == '__main__':
-    main()
+    main()