Release notes for PyTables 3.3 series¶
Changes from 220.127.116.11 to 3.3.0¶
Single codebase Python 2 and 3 support (PR #493).
Internal Blosc version updated to 1.11.1 (closes gh-541)
Full BitShuffle support for new Blosc versions (>= 1.8).
It is now possible to remove all rows from a table.
Get rid of the -native compile flag (closes gh-503)
The default number of threads to run numexpr (MAX_NUMEXPR_THREADS) internally has been raised from 2 to 4. This is because we are in 2016 and 4 core configurations are becoming common.
In order to avoid locking issues when using PyTables concurrently in several process, MAX_BLOSC_THREADS has been set to 1 by default. If you are running PyTables in one single process, you may want to experiment if higher values (like 2 or 4) bring better performance for you.