def set_value(self, obj, value=None):
if value is None:
if self.default is not None:
value = self.default
elif self.mandatory:
msg = 'No values specified for mandatory parameter {} in {}'
raise ConfigError(msg.format(self.name, obj.name))
else:
try:
value = self.kind(value)
except (ValueError, TypeError):
typename = self.get_type_name()
msg = 'Bad value "{}" for {}; must be {} {}'
article = get_article(typename)
raise ConfigError(
msg.format(value, self.name, article, typename))
current_value = getattr(obj, self.name, None)
if current_value is None:
setattr(obj, self.name, value)
elif not isiterable(current_value):
setattr(obj, self.name, value)
else:
new_value = current_value + [value]
setattr(obj, self.name, new_value)
if value is not None:
if self.allowed_values:
self._validate_allowed_values(obj, value)
if self.constraint:
self._validate_constraint(obj, value)
def set_value(self, obj, value=None):
if value is None:
if self.default is not None:
value = self.default
elif self.mandatory:
msg = 'No values specified for mandatory parameter {} in {}'
raise ConfigError(msg.format(self.name, obj.name))
else:
try:
value = self.kind(value)
except (ValueError, TypeError):
typename = self.get_type_name()
msg = 'Bad value "{}" for {}; must be {} {}'
article = get_article(typename)
raise ConfigError(msg.format(value, self.name, article, typename))
current_value = getattr(obj, self.name, None)
if current_value is None:
setattr(obj, self.name, value)
elif not isiterable(current_value):
setattr(obj, self.name, value)
else:
new_value = current_value + [value]
setattr(obj, self.name, new_value)
if value is not None:
if self.allowed_values:
self._validate_allowed_values(obj, value)
if self.constraint:
self._validate_constraint(obj, value)
def get_extension_class(self, name, kind=None):
"""
Return the class for the specified extension if found or raises ``ValueError``.
"""
name, _ = self.resolve_alias(name)
if kind is None:
return self.extensions[name]
ext = self.extension_kinds.get(kind)
if ext is None:
raise ValueError('Unknown extension type: {}'.format(kind))
store = self._get_store(ext)
if name not in store:
raise NotFoundError('Extensions {} is not {} {}.'.format(name, get_article(kind), kind))
return store[name]
def get_extension_class(self, name, kind=None):
"""
Return the class for the specified extension if found or raises ``ValueError``.
"""
name, _ = self.resolve_alias(name)
if kind is None:
return self.extensions[name]
ext = self.extension_kinds.get(kind)
if ext is None:
raise ValueError('Unknown extension type: {}'.format(kind))
store = self._get_store(ext)
if name not in store:
raise NotFoundError('Extensions {} is not {} {}.'.format(name, get_article(kind), kind))
return store[name]
