def _check_choice(self):
if self.type == "choice":
if self.choices is None:
raise OptionError(
"must supply a list of choices for type 'choice'", self)
elif type(self.choices) not in (TupleType, ListType):
raise OptionError(
"choices must be a list of strings ('%s' supplied)"
% string.split(str(type(self.choices)),"'")[1], self)
elif self.choices is not None:
raise OptionError(
"must not supply choices for type %s" % (repr(self.type),), self)
def _check_nargs(self):
if self.action in self.TYPED_ACTIONS:
if self.nargs is None:
self.nargs = 1
elif self.nargs is not None:
raise OptionError(
"'nargs' must not be supplied for action %s" %
(repr(self.action), ), self)
def _check_opt_strings(self, opts):
# Filter out None because early versions of Optik had exactly
# one short option and one long option, either of which
# could be None.
opts = filter(None, opts)
if not opts:
raise OptionError("at least one option string must be supplied",
self)
return opts
def _check_callback(self):
if self.action == "callback":
if not callable(self.callback):
raise OptionError(
"callback not callable: %s" % (repr(self.callback), ),
self)
if (self.callback_args is not None
and type(self.callback_args) is not TupleType):
raise OptionError(
"callback_args, if supplied, must be a tuple: not %s" %
(repr(self.callback_args), ), self)
if (self.callback_kwargs is not None
and type(self.callback_kwargs) is not DictType):
raise OptionError(
"callback_kwargs, if supplied, must be a dict: not %s" %
(repr(self.callback_kwargs), ), self)
else:
if self.callback is not None:
raise OptionError(
"callback supplied (%s) for non-callback option" %
(repr(self.callback), ), self)
if self.callback_args is not None:
raise OptionError(
"callback_args supplied for non-callback option", self)
if self.callback_kwargs is not None:
raise OptionError(
"callback_kwargs supplied for non-callback option", self)
def _set_attrs(self, attrs):
for attr in self.ATTRS:
if attrs.has_key(attr):
setattr(self, attr, attrs[attr])
del attrs[attr]
else:
if attr == 'default':
setattr(self, attr, NO_DEFAULT)
else:
setattr(self, attr, None)
if attrs:
raise OptionError(
"invalid keyword arguments: %s" %
string.join(attrs.keys(), ", "), self)
def _check_const(self):
if self.action != "store_const" and self.const is not None:
raise OptionError(
"'const' must not be supplied for action %s" %
(repr(self.action), ), self)