diff --git a/pyhive/presto.py b/pyhive/presto.py
index 18994962..4ee8489d 100644
--- a/pyhive/presto.py
+++ b/pyhive/presto.py
@@ -41,7 +41,7 @@ def escape_item(self, item):
         elif isinstance(item, datetime.date):
             return self.escape_date(item)
         else:
-            return super().escape_item(item)
+            return super(PrestoParamEscaper, self).escape_item(item)
 
     def escape_date(self, item):
         return "date '{}'".format(item)
diff --git a/pyhive/sqlalchemy_presto.py b/pyhive/sqlalchemy_presto.py
index aea652fb..95ec4814 100644
--- a/pyhive/sqlalchemy_presto.py
+++ b/pyhive/sqlalchemy_presto.py
@@ -63,7 +63,7 @@ def visit_table(self, table, asfrom=False, iscrud=False, ashint=False,
         )
         return self.__add_catalog(sql, table)
 
-    def __add_catalog(self, sql: str, table: FromClause) -> str:
+    def __add_catalog(self, sql, table):
         if table is None:
             return sql
 
@@ -77,7 +77,7 @@ def __add_catalog(self, sql: str, table: FromClause) -> str:
             return sql
 
         catalog = table.dialect_options["presto"]._non_defaults["catalog"]
-        sql = f"\"{catalog}\".{sql}"
+        sql = "\"{catalog}\".{sql}".format(catalog=catalog, sql=sql)
         return sql