log only first 400 char of error text

mondumas/views/utils.py

@@ -172,10 +172,7 @@ def send_mail(request, expediteur, destinataires, objet, corps):
     except Exception as e:
         # Just print(e) is cleaner and more likely what you want,
         # but if you insist on printing message specifically whenever possible...
-        if hasattr(e, 'message'):
-            msg = e.message[0:400]
-        else:
-            msg = e[0:400]
+        msg = repr(e)[0:400]
         insert_log(request, 'MAILER', "- ERROR : %s, TO : %s" % (msg, destinataires))
 
     return str(msg)