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Diffstat (limited to 'doc/release/1.9.0-notes.rst')
| -rw-r--r-- | doc/release/1.9.0-notes.rst | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/release/1.9.0-notes.rst b/doc/release/1.9.0-notes.rst index c856904af..9aa39342a 100644 --- a/doc/release/1.9.0-notes.rst +++ b/doc/release/1.9.0-notes.rst @@ -112,6 +112,14 @@ performed, and hence the sequence location will be different after a call to distribution.c::rk_binomial_btpe. Any tests which rely on the RNG being in a known state should be checked and/or updated as a result. +Random seed enforced to be a 32 bit unsigned integer +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +``np.random.seed`` and ``np.random.RandomState`` now throw a ``ValueError`` +if the seed cannot safely be converted to 32 bit unsigned integers. +Applications that now fail can be fixed by masking the higher 32 bit values to +zero: ``seed = seed & 0xFFFFFFFF``. This is what is done silently in older +versions so the random stream remains the same. + New Features ============ |