Compress a string

[Matt Porter]

On Sun, 18 May 2008 20:30:57 +0100, Peter Otten <__peter__ at web.de> wrote:

> Matt Porter wrote:
>
>> I'm trying to compress a string.
>> E.g:
>>   "AAAABBBC" -> "ABC"
>
> Two more:
>
>>>> from itertools import groupby
>>>> "".join(k for k, g in groupby("aaaaaabbbbbbbbbbcccccc"))
> 'abc'
>
>>>> import re
>>>> re.compile(r"(.)\1*").sub(r"\1", "aaaaaaabbbbcccccccc")
> 'abc'
>

Brilliant - I was trying to figure out how to do this with the re  
capabilities.

Thanks to everyone

> Peter
> --
> http://mail.python.org/mailman/listinfo/python-list
>



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