zlib: improve bytes handling

[sobolevn]

compress

>>>importzlib>>>zlib.compress(bytearray(b'abc'))
b"x\x9cKLJ\x06\x00\x02M\x01'">>>zlib.compress(memoryview(b'abc'))
b"x\x9cKLJ\x06\x00\x02M\x01'"

decompress

>>>zlib.decompress(bytearray(b"x\x9cKLJ\x06\x00\x02M\x01'"))
b'abc'>>>zlib.decompress(memoryview(b"x\x9cKLJ\x06\x00\x02M\x01'"))
b'abc'

adler32

>>>zlib.adler32(bytearray(b''))
1>>>zlib.adler32(memoryview(b''))
1

crc32

>>>zlib.crc32(bytearray(b'123'))
2286445522>>>zlib.crc32(memoryview(b'123'))
2286445522

decompressobj and compressobj

>>>zlib.decompressobj(0, bytearray(b''))
<zlib.Decompressobjectat0x103b4b520>>>>zlib.decompressobj(0, memoryview(b''))
<zlib.Decompressobjectat0x103b4b5d0>>>>zlib.compressobj(zdict=bytearray(b''))
<zlib.Compressobjectat0x103b4b520>>>>zlib.compressobj(zdict=memoryview(b''))
<zlib.Compressobjectat0x103b4b5d0>

[github-actions]

According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉

[hauntsaninja]

Lgtm

[JelleZijlstra]

Confirmed in the C code.