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Undoing a 'git push'

...commit:branch_name or in your case git push -f origin cc4b63bebb6:alpha-0.3.0 You may have receive.denyNonFastForwards set on the remote repository. If this is the case, then you will get an error which includes the phrase [remote rejected]. In this scenario, you will have to delete and recrea...
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while (1) vs. while(True) — Why is there a difference (in python 2 bytecode)?

...ntents of True. In other words, True is reassignable: Python 2.7 (r27:82508, Jul 3 2010, 21:12:11) [GCC 4.0.1 (Apple Inc. build 5493)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> True = 4 >>> True 4 In Python 3.x it truly becomes a k...
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Check for array not empty: any?

...to empty? ? – RocketR Nov 17 '12 at 0:00 13 @RocketR you might want to checkout present? method. ...
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Selecting data frame rows based on partial string match in a column

... 150 I notice that you mention a function %like% in your current approach. I don't know if that's a r...
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Android studio: new project vs new module

... 102 From the documentation (Android Studio is based on Intellij IDEA) : Whatever you do in Inte...
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Return index of greatest value in an array

... works on old browsers: function indexOfMax(arr) { if (arr.length === 0) { return -1; } var max = arr[0]; var maxIndex = 0; for (var i = 1; i < arr.length; i++) { if (arr[i] > max) { maxIndex = i; max = arr[i]; } } ...
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How to create a video from images with FFmpeg?

...video filter instead of -r for the output framerate ffmpeg -r 1/5 -i img%03d.png -c:v libx264 -vf fps=25 -pix_fmt yuv420p out.mp4 Alternatively the format video filter can be added to the filter chain to replace -pix_fmt yuv420p like "fps=25,format=yuv420p". The advantage of this method is th...
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How do I use itertools.groupby()?

... ("vehicle", "school bus")] for key, group in groupby(things, lambda x: x[0]): for thing in group: print("A %s is a %s." % (thing[1], key)) print("") This will give you the output: A bear is a animal. A duck is a animal. A cactus is a plant. A speed boat is a vehicle. A schoo...
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Where are my postgres *.conf files?

I have recently reinstalled postgresql 8.3 on my Ubuntu 8.04 after update. Used EnterpriseDB package. I can connect to the database locally, I see system DB postgres but I can't configure it because I can't find config files. Searched through entire hard drive and found only samples like pg_hba.con...
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C++: Rounding up to the nearest multiple of a number

...ger math. int roundUp(int numToRound, int multiple) { if (multiple == 0) return numToRound; int remainder = numToRound % multiple; if (remainder == 0) return numToRound; return numToRound + multiple - remainder; } Edit: Here's a version that works with negative n...