int
constructor can do this very easily :
>>> s = '{0:08b}'.format(42)
>>> s
'00101010'
>>> int(s, 2)
42
题
I have .bmp
picture and I need to make some steganography with it.
For this action I have to convert .bmp
to list of bytes and then make some changes in bits.
I use open()
with "rb"
parameter to make bytes list and then convert each byte to string using '{0:08b}'.format(mybyte)
.
My question is how to convert this string representation of byte back to byte? maybe there are some faster or more correct ways to work with bits?
解决方案
int
constructor can do this very easily :
>>> s = '{0:08b}'.format(42)
>>> s
'00101010'
>>> int(s, 2)
42
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