checks.py 文件源码

def visit_Subscript(self, node):
        func = None
        if isinstance(node.value, ast.Call):
            call = node.value
            if isinstance(call.func, ast.Name):
                func = call.func.id
            elif isinstance(node.value.func, ast.Attribute):
                func = call.func.attr
        if func == 'mkstemp':
            if isinstance(node.slice, ast.Index):
                index = node.slice.value
                if isinstance(index, ast.Num) and index.n == 1:
                    yield self.tag(node, 'mkstemp-file-descriptor-leak')
        for t in self.generic_visit(node):
            yield t