Replacing words from strings except 'and' / 'or' / 'and not'

[Nico Grubert]

>    def decorate(s):
>        words = s.split()
>        # make "and not" a 'word'
>        for i in range(len(words)-1,-1,-1):
>            if words[i] == 'and' and words[i+1] == 'not':
>                words[i:i+2] = ["and not"]
>        special = ('and', 'and not', 'or')
>        for word in words:
>            if word in special:
>                yield word
>            else:
>                yield "*%s*" % word
>
>    s = "test and testing and not perl or testit or example"
>    print " ".join(decorate(s))
>
>Hoping I didn't just do your homework, I wish you a Happy Thanksgiving...
>  
>
Hi Skip,

thanks a lot. That's it.
Your code is much more compact and easier to read than my first try that 
was around 100 lines of code without
having a 100% solution. Nice to see, how simple Python can be.


Kind regards,
Nico