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Extract first item of each sublist
...[1,2,3],[11,12,13],[21,22,23]]
>>> zip(*lst)[0]
(1, 11, 21)
Or, Python 3 where zip does not produce a list:
>>> list(zip(*lst))[0]
(1, 11, 21)
Or,
>>> next(zip(*lst))
(1, 11, 21)
Or, (my favorite) use numpy:
>>> import numpy as np
>>> a=np.array...
Why should we typedef a struct so often in C?
...cts where this use of typedef to hide struct is considered a bad idea, the Linux kernel is probably the most well-known such project. See Chapter 5 of The Linux Kernel CodingStyle document for Linus' angry words. :) My point is that the "should" in the question is perhaps not set in stone, after all...
Does Go have “if x in” construct similar to Python?
... (probably about as slow as if you wrote it out in a dynamic language like Python). Other than that, no. That's what people mean when they say that Go doesn't have generics.
– andybalholm
May 13 '15 at 15:44
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OOP vs Functional Programming vs Procedural [closed]
...y better off with that. For a small web application, there are some great Python, PHP, and Ruby frameworks that'll get you off and running very quickly. Java is a great choice for larger projects because of the compile-time checking and enterprise libraries and platforms.
It used to be the case t...
How do you install an APK file in the Android emulator?
...]
Example:
adb install C:\Users\Name\MyProject\build\Jorgesys.apk
Linux:
Copy the apk file to platform-tools in android-sdk linux folder.
Open Terminal and navigate to platform-tools folder in android-sdk.
Then Execute this command -
./adb install FileName.apk
If the operation is su...
efficient circular buffer?
I want to create an efficient circular buffer in python (with the goal of taking averages of the integer values in the buffer).
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How do I parse command line arguments in Bash?
... @Livven, that getopt is not a GNU utility, it's part of util-linux.
– Stephane Chazelas
Aug 20 '14 at 19:55
4
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Python timedelta in years
...29th February 2008 it returns Zero- at least for me; not 1 as you suggest (Python 2.5.2). There's no need to rude Mr Machin. Exactly what two dates are you having trouble with?
– John Mee
Feb 8 '10 at 6:16
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Finding the index of an item in a list
..., "baz"] and an item in the list "bar" , how do I get its index ( 1 ) in Python?
31 Answers
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How to prevent page scrolling when scrolling a DIV element?
... Your manual scrolling is backwards on Firefox 10, at least on Linux and Mac. Seems to work correctly if you make that -e.detail, tested in Firefox (Mac, Linux), Safari (Mac), and Chromium (Linux).
– Anomie
Apr 5 '12 at 16:25
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