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List comprehension: Returning two (or more) items for each item
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print timeit(stmt='list(chain.from_iterable((f(x), g(x)) for x in xrange(10**6)))',
setup='gc.enable(); from itertools import chain; f = lambda x: x + 2; g = lambda x: x ** 2',
number=20)
print timeit(stmt='list(chain.from_iterable(fg(x) for x in xrange(10**6)))',
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What is an undefined reference/unresolved external symbol error and how do I fix it?
...s with GCC:
/home/AbiSfw/ccvvuHoX.o: In function `main':
prog.cpp:(.text+0x10): undefined reference to `x'
prog.cpp:(.text+0x19): undefined reference to `foo()'
prog.cpp:(.text+0x2d): undefined reference to `A::~A()'
/home/AbiSfw/ccvvuHoX.o: In function `B::~B()':
prog.cpp:(.text._ZN1BD1Ev[B::~B()]+...
Data binding to SelectedItem in a WPF Treeview
... @Pascal it's xmlns:e="http://schemas.microsoft.com/expression/2010/interactivity"
– Steve Greatrex
Jun 11 '14 at 6:39
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What are the differences between numpy arrays and matrices? Which one should I use?
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edited May 7 at 14:10
hashlash
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answered Apr 11 at 11:52
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Calling dynamic function with dynamic number of parameters [duplicate]
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10 Answers
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Read properties file outside JAR file
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Ninad PingaleNinad Pingale
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ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.al
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edited Oct 10 '19 at 5:53
Leo Quiroa
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answered Dec 16 '1...
Count number of occurences for each unique value
... I used to do this awkwardly with hist. table seems quite a bit slower than hist. I wonder why. Can anyone confirm?
– Museful
Aug 22 '13 at 23:03
2
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How can I programmatically check whether a keyboard is present in iOS app?
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answered Jun 10 '12 at 4:03
thpitschthpitsch
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How do I use installed packages in PyCharm?
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answered Nov 10 '13 at 3:17
BrigandBrigand
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