core.py 文件源码

def _add_aliases(self, node):
        """
        We delegate to this method instead of using visit_alias() to have
        access to line numbers and to filter imports from __future__.
        """
        assert isinstance(node, (ast.Import, ast.ImportFrom))
        for name_and_alias in node.names:
            # Store only top-level module name ("os.path" -> "os").
            # We can't easily detect when "os.path" is used.
            name = name_and_alias.name.partition('.')[0]
            alias = name_and_alias.asname
            self._define(
                self.defined_imports, alias or name, node,
                confidence=90, ignore=_ignore_import)
            if alias is not None:
                self.used_names.add(name_and_alias.name)