UnboundLocalError: "bazel-path for autobazel-attribute looks strange" warning is hit

[adamtheturtle]

See the following code

sphinx-bazel/sphinxcontrib/sphinx_bazel/autobazel/common.py

Lines 537 to 546 in 6a39e46

	def _handle_attribute(self):
	"""Cares about the correct handling of autobazel-attributes"""
	attribute_path = self.arguments[0]
	try:
	package_name, target_name, rule_name, attribute_name = attribute_path.rsplit(':', 3)
	except (IndexError, ValueError):
	self.log.warning("bazel-path for autobazel-attribute looks strange: {}".format(attribute_path))
	if target_name.startswith('/'):

If the except clause is hit, target_name is not set and therefore the startswith check will error.