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Re: Python 3.x and bytes

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On 05/17/2011 02:47 PM, Ethan Furman wrote:
> In Python 3 one can say
> 
> --> huh = bytes(5)
> 
> Since the bytes type is actually a list of integers, I would have 
> expected this to have huh being a bytestring with one element -- the 
> integer 5.  Actually, what you get is:
> 
> --> huh
> b'\x00\x00\x00\x00\x00'
> 
> or five null bytes.  Note that this is an immutable type, so you cannot 
> go in later and say

For the bytes to actually be a 'list of integers', you need to pass it
an iterable, ex:
>>> bytes([5, 6, 1, 3])
b'\x05\x06\x01\x03'

- From help(bytes):
 |  bytes(iterable_of_ints) -> bytes
 |  bytes(string, encoding[, errors]) -> bytes
 |  bytes(bytes_or_buffer) -> immutable copy of bytes_or_buffer
 |  bytes(memory_view) -> bytes

Looks like you're using the fourth when you want the first, possibly?

- -- 
Corey Richardson
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Re: Python 3.x and bytes Corey Richardson <kb1pkl@aim.com> - 2011-05-17 15:50 -0400

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