Noob questions about Python

Neil Cerutti horpner at yahoo.com
Wed Oct 17 22:36:21 CEST 2007


On 2007-10-17, Bruno Desthuilliers
<bdesth.quelquechose at free.quelquepart.fr> wrote:
> Ixiaus a écrit :
>> val = 00110
>> 
>> as the integer 72 instead of returning 00110, why does Python
>> do that?
>
> Literal integers starting with '0' (zero) are treated as octal.
> It's a pretty common convention (like 0x for hexa). FWIW, PHP
> does just the same thing.
>
>> (and how can I get around it?)
>
> You can't. Python has no literal notation for binary integers
> so far. Literal notation for binary ints is not a common
> feature anyway.

You can obtain a practical workaround using the int built-in
function.

>>> int('110', 2)
6

-- 
Neil Cerutti



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