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Extract first item of each sublist
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You could use zip:
>>> lst=[[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:
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How do I install a NuGet package into the second project in a solution?
... to the first project, not the current one.
– Eternal21
Mar 30 '16 at 19:02
6
@Eternal21 You can ...
Update Item to Revision vs Revert to Revision
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Wim CoenenWim Coenen
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How to use the CancellationToken property?
...ter controls, have you read it?
http://msdn.microsoft.com/en-us/library/dd321703(v=vs.110).aspx
If throwOnFirstException is true, an exception will immediately
propagate out of the call to Cancel, preventing the remaining
callbacks and cancelable operations from being processed. If
throwOn...
Scala: Abstract types vs generics
...-)
– Daniel C. Sobral
Jul 20 '09 at 21:12
7
Hi Daniel: I think there must be concrete examples fo...
.NET Global exception handler in console application
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Russell JonakinRussell Jonakin
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What guarantees are there on the run-time complexity (Big-O) of LINQ methods?
...Diaconescu
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Scala 2.8 breakOut
...ovided by the Map class.
– Mark
Dec 21 '12 at 5:29
2
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ByteBuffer.allocate() vs. ByteBuffer.allocateDirect()
... bmarguliesbmargulies
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What are all the user accounts for IIS/ASP.NET and how do they differ?
...5.7307 4.9328 45.2525 4.66231 44.6595 4.66231C43.6264 4.66231 43.1481 5.28821 43.1481 6.59048V11.9512C43.1481 13.2535 43.6264 13.8962 44.6595 13.8962C45.6924 13.8962 46.1709 13.2535 46.1709 11.9512V9.17788Z\"/\u003e\u003cpath d=\"M32.492 10.1419C32.492 12.6954 34.1182 14.0484 37.0451 14.0484C39.9723...