formatters: use locale.getpreferredencoding() instead of utf-8

Signed-off-by: Matthieu Weber <mweber+weboob@free.fr>
Signed-off-by: Romain Bignon <romain@symlink.me>

weboob/tools/application/formatters/table.py

@@ -17,6 +17,7 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
+import locale
 
 from prettytable import PrettyTable
 
@@ -40,7 +41,7 @@ class TableFormatter(IFormatter):
     def flush(self):
         s = self.get_formatted_table()
         if s is not None:
-            self.output(s.encode('utf-8'))
+            self.output(s.encode(locale.getpreferredencoding(), errors='replace'))
 
     def get_formatted_table(self):
         if len(self.queue) == 0: