diff options
| -rw-r--r-- | Misc/NEWS | 5 | ||||
| -rw-r--r-- | Tools/pybench/Lists.py | 55 |
2 files changed, 60 insertions, 0 deletions
@@ -190,6 +190,11 @@ Library - Issue #4730: Fixed the cPickle module to handle correctly astral characters when protocol 0 is used. +Tools/Demos +----------- + +- Issue #4677: add two list comprehension tests to pybench. + Build ----- diff --git a/Tools/pybench/Lists.py b/Tools/pybench/Lists.py index 67760db..6c297a3 100644 --- a/Tools/pybench/Lists.py +++ b/Tools/pybench/Lists.py @@ -293,3 +293,58 @@ class SmallLists(Test): for i in xrange(self.rounds): pass + +class SimpleListComprehensions(Test): + + version = 2.0 + operations = 6 + rounds = 20000 + + def test(self): + + n = range(10) * 10 + + for i in xrange(self.rounds): + l = [x for x in n] + l = [x for x in n if x] + l = [x for x in n if not x] + + l = [x for x in n] + l = [x for x in n if x] + l = [x for x in n if not x] + + def calibrate(self): + + n = range(10) * 10 + + for i in xrange(self.rounds): + pass + +class NestedListComprehensions(Test): + + version = 2.0 + operations = 6 + rounds = 20000 + + def test(self): + + m = range(10) + n = range(10) + + for i in xrange(self.rounds): + l = [x for x in n for y in m] + l = [y for x in n for y in m] + + l = [x for x in n for y in m if y] + l = [y for x in n for y in m if x] + + l = [x for x in n for y in m if not y] + l = [y for x in n for y in m if not x] + + def calibrate(self): + + m = range(10) + n = range(10) + + for i in xrange(self.rounds): + pass |