From list of bits to PDF

[Gribouillis]

I would rather do it this way

>>> import io
>>> f = io.BytesIO(b'foo bar baz')
>>> L = [bin(c)[2:] for c in f.read()]
>>> L
['1100110', '1101111', '1101111', '100000', '1100010', '1100001', '1110010', '100000', '1100010', '1100001', '1111010']
>>> b = bytes([int(s, 2) for s in L])
>>> b
b'foo bar baz'