Issue #16411: Fix a bug where zlib.decompressobj().flush() might try to access previously-freed memory.

Patch by Serhiy Storchaka.

Issue #16411: Fix a bug where zlib.decompressobj().flush() might try to access previously-freed memory.

Patch by Serhiy Storchaka.

Additionally, fix a bug where a MemoryError in allocating a bytes object could
leave the decompressor object in an invalid state (with its unconsumed_tail
member being NULL).

Patch by Serhiy Storchaka.

Additionally, fix a bug where a MemoryError in allocating a bytes object could
leave the decompressor object in an invalid state (with its unconsumed_tail
member being NULL).

Patch by Serhiy Storchaka.

Original patch by Jeff McNeil.

Original patch by Jeff McNeil.

testing were added as part of the issue10050 change that caused the
wrong behavior in the first place.  now all test cases agree on the
behavior.

urllib.request.urlretrieve API now properly supplies a constant
non-zero block_size as it did in Python 3.2 and 2.7.  This matches the
behavior of urllib.request.URLopener.retrieve.

#13301: use ast.literal_eval() instead of eval() in Tools/i18n/msgfmt.py.  Patch by Serhiy Storchaka.

Thanks to Yongzhi Pan.

Thanks to Yongzhi Pan.

Thanks to Yongzhi Pan from docs@

Thanks to Yongzhi Pan from docs@

from a Decimal argument.

Patch by Victor Stinner.

Patch by Victor Stinner.

If anyone finds another recursive C path that bypasses the recursion
limiting, they can add a new crasher example.

Use year 1990 instead of year 1970 to avoid issues with negative timestamps.

Issue #16350: Fix zlib decompressor handling of unused_data with multiple calls to decompress() after EOF.

Patch by Serhiy Storchaka.