Why is Python popular, while Lisp and Scheme aren't?

[Jens Axel Søgaard]

Anders J. Munch wrote:
> "Pascal Costanza" <costanza at web.de> wrote:
> 
>>Michael Hudson wrote:
>>
>>
>>>Did you know that s-exps (i.e. the paren heavy Lisp we know today) was
>>>intended to be a temporary syntax, and that John McCarthy intended to
>>>develop a more familiar syntax for Lisp?  Somehow he never did --
>>>maybe because it turned out to be a bad idea?
>>
>>He did. But the programmers who were already using Lisp didn't accept
>>the new syntax. They preferred s-exps.
> 
> 
> I'm curious: what exactly did McCarthy's new syntax look like?  Have
> you got any pointers to specs, examples or such on the web?

I can't remember a link - but if you want to Google for them,
they were calles M-expressions.

I can't remember if the M-expressions were implementes or whether
they are to be found in McCarthy's articles from that perioed.