@@ -1135,7 +1135,7 @@ class DBText(object):

             else:

                 header = '%s)' % header

-        self.temp_file.write(header.strip() + '\n')

+        self.temp_file.write((header.strip() + '\n').encode())

         # write data

         for row in self.data:

@@ -1143,7 +1143,7 @@ class DBText(object):

             for col in columns:

                 row_str = '%s:%s' % (row_str, row[col])

-            self.temp_file.write(row_str[1:] + '\n')

+            self.temp_file.write((row_str[1:] + '\n').encode())

         self.temp_file.flush()