def _convert_collections_namedtuple_args(self, node: ast3.Call):
if len(node.args) != 2:
msg = "Wrong args: expected namedtuple(name, [field, ...])"
raise ParseError(msg)
name, fields = node.args
fields = self.convert_node(fields)
fields = [(types.string_value(n), pytd.AnythingType()) for n in fields]
node.args = [name.s, fields] # pytype: disable=attribute-error
def _convert_typing_namedtuple_args(self, node: ast3.Call):
# TODO(mdemello): handle NamedTuple("X", a=int, b=str, ...)
if len(node.args) != 2:
msg = "Wrong args: expected NamedTuple(name, [(field, type), ...])"
raise ParseError(msg)
name, fields = node.args
fields = self.convert_node(fields)
fields = [(types.string_value(n), t) for (n, t) in fields]
node.args = [name.s, fields]
def _convert_typevar_args(self, node):
self.annotation_visitor.visit(node.keywords)
if not node.args:
raise ParseError("Missing arguments to TypeVar")
name, *rest = node.args
if not isinstance(name, ast3.Str):
raise ParseError("Bad arguments to TypeVar")
node.args = [name.s] + [self.convert_node(x) for x in rest]
# Special-case late types in bound since typeshed uses it.
for kw in node.keywords:
if kw.arg == "bound":
if isinstance(kw.value, types.Pyval):
val = types.string_value(kw.value, context="TypeVar bound")
kw.value = self.annotation_visitor.convert_late_annotation(val)