diff options
Diffstat (limited to 'Misc/NEWS')
| -rw-r--r-- | Misc/NEWS | 33 |
1 files changed, 18 insertions, 15 deletions
@@ -73,6 +73,24 @@ Extension modules - Implemented (?(id/name)yes|no) support in SRE (#572936). +- random.seed() with no arguments or None uses time.time() as a default + seed. Modified to match Py2.2 behavior and use fractional seconds so + that successive runs are more likely to produce different sequences. + +- random.Random has a new method, getrandbits(k), which returns an int + with k random bits. This method is now an optional part of the API + for user defined generators. Any generator that defines genrandbits() + can now use randrange() for ranges with a length >= 2**53. Formerly, + randrange would return only even numbers for ranges that large (see + SF bug #812202). Generators that do not define genrandbits() now + issue a warning when randrange() is called with a range that large. + +- itertools now has a new function, tee() which produces two independent + iterators from a single iterable. + +- itertools.izip() with no arguments now returns an empty iterator instead + of raising a TypeError exception. + Library ------- @@ -108,21 +126,6 @@ Library allow any iterable. Also the Set.update() has been deprecated because it duplicates Set.union_update(). -- random.seed() with no arguments or None uses time.time() as a default - seed. Modified to match Py2.2 behavior and use fractional seconds so - that successive runs are more likely to produce different sequences. - -- random.Random has a new method, getrandbits(k), which returns an int - with k random bits. This method is now an optional part of the API - for user defined generators. Any generator that defines genrandbits() - can now use randrange() for ranges with a length >= 2**53. Formerly, - randrange would return only even numbers for ranges that large (see - SF bug #812202). Generators that do not define genrandbits() now - issue a warning when randrange() is called with a range that large. - -- itertools.izip() with no arguments now returns an empty iterator instead - of raising a TypeError exception. - - _strptime.py now has a behind-the-scenes caching mechanism for the most recent TimeRE instance used along with the last five unique directive patterns. The overall module was also made more thread-safe. |