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[Python-3000] Py3.0 Library Ideas

Raymond Hettingerpython at rcn.com
Fri Feb 16 01:48:51 CET 2007


* Remove the unreliable empty() and full() methods from Queue.py* Remove jumpahead() from the random API.  It is somewhat uncommon for PRNGs to have a closed form solution that jumpsahead N steps.* Make the primative for random be something generating random bytes rather than random floats.  Currently to get a random integer, a generator like the Mersenne twister generates two blocks of 4 bytes, which are then turned into a C double and then random.py module converts the float back into an integer in the desired range.  The long-->float-->long dance could be abbreviated.  This would also make it easier to substitute in other generators without making them responsible for the long-->float step.* Get rid of Cookie.SerialCookie and Cookie.SmartCookie* Modify the heapq.heapreplace() API to compare the new value to the top of the heap.  This has come-up more than once.  When using a heap for a priority queue, sometimes there is a need to revise the priority of an entry in the middle of the heap.  This can be done with heapreplace substituting the new priority/task pair and then running a _siftup operation to restore the heap condition.Raymond


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