community/py-lz4: upgrade to 2.1.0

This release changes the handling of errors for block decompression when
uncompressed_size > 0. In this case, we no longer check that the uncompressed
data has exactly the size specified by uncompressed_size: this argument is
now used as an upper bound.

In addition, we introduce a new exception: LZ4BlockError which is raised
whenever the LZ4 library fails.

These two changes together allow "guessing" of the uncompressed data size:
simply set uncompressed_size to a number and try decompress, and catch
LZ4BlockError. If LZ4BlockError is raised, increase uncompressed_size
and try again.

See the documentation for more details and examples:

http://python-lz4.readthedocs.io/en/stable/lz4.block.html

0 files changed, 0 insertions, 0 deletions