Method walk

web/template.py:1359–1364

Validate each node in AST and raise SecurityError if the code is not safe.

(self, tree, filename)

        self.errors = []

    def walk(self, tree, filename):
        "Validate each node in AST and raise SecurityError if the code is not safe."
        self.filename = filename
        self.visit(tree)
        if self.errors:
            raise SecurityError("\n".join([str(err) for err in self.errors]))

    def generic_visit(self, node):
        nodename = type(node).__name__