generate De Bruijn sequence memory and string vs lists

[Mark Lawrence]

On 23/01/2014 20:10, Peter Otten wrote:
> Vincent Davis wrote:
>
>> On Thu, Jan 23, 2014 at 12:02 PM, Peter Otten <__peter__ at web.de> wrote:
>>>
>>> I just noted that the first Python loop can be eliminated:
>
>
> Oops, I forgot to paste
>
> import string
> def chars(a, b):
>      return "".join(map(chr, range(a, b)))
> _mapping = string.maketrans(chars(0, 10), chars(48, 58))
>

FTR string.maketrans is gone from Python 3.2+.  Quoting from 
http://docs.python.org/dev/whatsnew/3.2.html#porting-to-python-3-2 "The 
previously deprecated string.maketrans() function has been removed in 
favor of the static methods bytes.maketrans() and bytearray.maketrans(). 
This change solves the confusion around which types were supported by 
the string module. Now, str, bytes, and bytearray each have their own 
maketrans and translate methods with intermediate translation tables of 
the appropriate type."

-- 
My fellow Pythonistas, ask not what our language can do for you, ask 
what you can do for our language.

Mark Lawrence