If I'm not mistaken Guido has been thinking about anonymous code blocks as a possible purpose of the with statement but he was persuaded not to do such a thing

If I'm not mistaken Guido has been thinking about anonymous code blocks as a possible purpose of the with statement but he was persuaded not to do such a thing as it won't fit into python's core concept TOOWTDI (there is only one way to do it). Significant whitespace by no means implies lack of anonymous blocks, they will just look a bit differently. Look at CoffeeScript if you want to see an example.