Hi pyple !
I'd like to write a stream of bytes into a file. I'd like to use the
struct (instead of bytearray) module because I will have to write more
than bytes.
let's say I want a file with 4 bytes in that order:
01 02 03 04
None of these work:
import struct
with open('toto', 'wb') as f: f.write(struct.pack('4B', *[1,2,3,4]))
with open('toto', 'wb') as f: f.write(struct.pack('<4B', *[1,2,3,4]))
with open('toto', 'wb') as f: f.write(struct.pack('>4B', *[1,2,3,4]))
I always end up with the following bytes on file:
!hexdump toto
0000000 0201 0403
Note: the '<' and '>' tells struct to pack for a litle/big endian
architecture.
The only solution I came up with is
with open('toto', 'wb') as f: f.write(struct.pack('>4B', *[2,1,4,3]))
But I'd rather not manipulate the stream, as it seems to me that this
would be the job of struct. Or maybe I completely overlooked the actual
issue ?
Cheers,
jm
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