extensionless_static_file_handler.py 文件源码

def validate_absolute_path(self, root, absolute_path):
        """
        Validate and return the absolute path.

        Same behavior as parent StaticFileHandler class, except that
        if the file is not found and does not have a file extension,
        a file extension is appended to the filename and another
        attempt is made to find the file.
        """
        if (self.default_extension is not None and
                not os.path.exists(absolute_path) and
                    os.path.splitext(absolute_path)[1] == '' and
                os.path.exists(absolute_path + self.default_extension)):
            # Append self.default_extension to extensionless file name.
            absolute_path += self.default_extension
        return super(ExtensionlessStaticFileHandler, self).validate_absolute_path(root, absolute_path)