code: def find_occurrences(project, resource, offset, unsure=False, resources=None,
                       in_hierarchy=False,
                       task_handle=taskhandle.NullTaskHandle()):
      
      name = worder.get_name_at(resource, offset)
      this_pymodule = project.get_pymodule(resource)
      primary, pyname = rope.base.evaluate.eval_location2(
          this_pymodule, offset)
  
      def is_match(occurrence):
          return unsure
      finder = occurrences.create_finder(
          project, name, pyname, unsure=is_match,
          in_hierarchy=in_hierarchy, instance=primary)
      if resources is None:
          resources = project.get_python_files()
      job_set = task_handle.create_jobset('Finding Occurrences',
                                          count=len(resources))
      return _find_locations(finder, resources, job_set)
docs: Return a list of `Location`\s
  
      If `unsure` is `True`, possible matches are returned, too.  You
      can use `Location.unsure` to see which are unsure occurrences.
      `resources` can be a list of `rope.base.resource.File`\s that
      should be searched for occurrences; if `None` all python files
      in the project are searched.