check for existence of joint channel when getting frames#4
Merged
rdeioris merged 1 commit into20tab:masterfrom Aug 16, 2018
Merged
check for existence of joint channel when getting frames#4rdeioris merged 1 commit into20tab:masterfrom
rdeioris merged 1 commit into20tab:masterfrom
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Thanks, added related test: |
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I propose a fix for issue #3 .
The if-else block seems to be a good trade-off in comparison to a try-except block concerning speed. I did some tests with timeit.
timeit(setup="l=['Xposition', 'Yposition', 'Zposition', 'Xrotation'];a='Zrotation'", stmt="if a in l:\n b=l.index(a)\nelse:\n b=-1")vs.
timeit(setup="l=['Xposition', 'Yposition', 'Zposition', 'Xrotation'];a='Zrotation'", stmt="try:\n b=l.index(a)\nexcept ValueError:\n b=-1")The performance of if-else is slower than try-except when the channel you're looking for exists, but the penalty for try-except seems much higher when the channel doesn't exist, whereas the if-else statement executes even faster.