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How to take the first N items from a generator or list in Python? [duplicate]

... to do this can be found here >>> generator = (i for i in xrange(10)) >>> list(next(generator) for _ in range(4)) [0, 1, 2, 3] >>> list(next(generator) for _ in range(4)) [4, 5, 6, 7] >>> list(next(generator) for _ in range(4)) [8, 9] Notice that the last call ...
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not None test in Python [duplicate]

... 1033 if val is not None: # ... is the Pythonic idiom for testing that a variable is not set ...
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ImportError: numpy.core.multiarray failed to import

...w fixed it. – Craig S. Anderson Oct 10 '18 at 3:28 add a comment  |  ...
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How to rename with prefix/suffix?

... 10 I've seen people mention a rename command, but it is not routinely available on Unix systems (a...
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cancelling a handler.postdelayed process

... answered Dec 7 '10 at 15:52 VarunVarun 31.2k44 gold badges4646 silver badges4242 bronze badges ...
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Loop through an array of strings in Bash?

... Ohad Schneider 31.7k1010 gold badges145145 silver badges184184 bronze badges answered Jan 16 '12 at 13:24 4ndrew4ndrew ...
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Why is pow(a, d, n) so much faster than a**d % n?

... here. – John Dvorak Jan 3 '13 at 6:10 ...
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Django in / not in query

...rked for me. – RickyA Nov 23 '11 at 10:30 3 ...
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Get bitcoin historical data [closed]

...egenesLykegenes 1,68611 gold badge1212 silver badges1010 bronze badges 2 ...
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How to disable HTML button using JavaScript?

... | edited Jun 21 '17 at 10:05 answered Jun 10 '10 at 13:18 ...