[docs] [issue22163] max_wbits set incorrectly to -zlib.MAX_WBITS in tarfile, shouldn't be negative

[Martin Panter]

Martin Panter added the comment:

Eduardo’s patch causes many tests to fail. Abbreviated test output:

$ ./python -bWall -m test -v test_tarfile
======================================================================
ERROR: test_compare_members (test.test_tarfile.GzipStreamReadTest)
ERROR: test_empty_tarfile (test.test_tarfile.GzipStreamReadTest)
ERROR: test_fileobj_regular_file (test.test_tarfile.GzipStreamReadTest)
ERROR: test_ignore_zeros (test.test_tarfile.GzipStreamReadTest)
ERROR: test_non_existent_tarfile (test.test_tarfile.GzipStreamReadTest)
ERROR: test_null_tarfile (test.test_tarfile.GzipStreamReadTest)
ERROR: test_provoke_stream_error (test.test_tarfile.GzipStreamReadTest)
ERROR: test_read_through (test.test_tarfile.GzipStreamReadTest)
----------------------------------------------------------------------
tarfile.ReadError: invalid compressed data

======================================================================
ERROR: test_stream_padding (test.test_tarfile.GzipStreamWriteTest)
----------------------------------------------------------------------
zlib.error: Error -3 while decompressing data: invalid stored block lengths

======================================================================
FAIL: test_detect_file (test.test_tarfile.GzipDetectReadTest)
FAIL: test_detect_fileobj (test.test_tarfile.GzipDetectReadTest)
AssertionError

----------------------------------------------------------------------
Ran 387 tests in 14.216s

FAILED (failures=2, errors=9, skipped=8)

There is already Issue 5784 open about clarifying the “wbits” parameter, so I think we can close this as a duplicate.

----------
resolution:  -> duplicate
status: open -> closed
superseder:  -> raw deflate format and zlib module

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22163>
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