Kurien Mathew írta:
> Hello,
>
> What will be a concise & efficient way to convert a list/array.array of
> n elements into a hex string? For e.g. given the bytes
> [116, 111, 110, 103, 107, 97]
> I would like the formatted string
> 0x74 0x6f 0x6e 0x67 0x6b 0x61
>
> Is there an approach better than below:
> hex = ''
> for b in bytes:
> hex += ('0x%x '%b)
>
<snip>
You should avoid multiple string additions, as each one creates a new
string object (str objects are immutable). Try this:
bytes = [116, 111, 110, 103, 107, 97]
string = ''.join( ['0x%x '%b for b in bytes] )
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