rename FileOption to FilenameOption

python 3 support

tiramisu/option.py

@@ -425,7 +425,7 @@ class Option(BaseOption):
                 self._validate(_value)
             except ValueError as err:
                 raise ValueError(_('invalid value for option {0}: {1}'
-                                   '').format(self._name, err.message))
+                                   '').format(self._name, err))
             try:
                 # valid with self._validator
                 val_validator(_value)
@@ -435,7 +435,7 @@ class Option(BaseOption):
                 self._second_level_validation(_value)
             except ValueError as err:
                 msg = _("invalid value for option {0}: {1}").format(
-                    self._name, err.message)
+                    self._name, err)
                 if self._warnings_only:
                     warnings.warn_explicit(ValueWarning(msg, self),
                                            ValueWarning,
@@ -1096,7 +1096,7 @@ class URLOption(DomainnameOption):
             raise ValueError(_('invalid url, should ends with filename'))
 
 
-class FileOption(Option):
+class FilenameOption(Option):
     __slots__ = tuple()
     _opt_type = 'file'
     path_re = re.compile(r"^[a-zA-Z0-9\-\._~/+]+$")