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Actual meaning of 'shell=True' in subprocess
I am calling different processes with the subprocess module. However, I have a question.
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Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
I was looking for the fastest way to popcount large arrays of data. I encountered a very weird effect: Changing the loop variable from unsigned to uint64_t made the performance drop by 50% on my PC.
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PHP 5.4 Call-time pass-by-reference - Easy fix available?
Is there any way to easily fix this issue or do I really need to rewrite all the legacy code?
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How can I force WebKit to redraw/repaint to propagate style changes?
I have some trivial JavaScript to effect a style change:
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Immutable class?
How can one make a Java class immutable, what is the need of immutability and is there any advantage to using this?
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What's the cleanest way of applying map() to a dictionary in Swift?
I'd like to map a function on all keys in the dictionary. I was hoping something like the following would work, but filter cannot be applied to dictionary directly. What's the cleanest way of achieving this?
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How to vertically center a inside a div? [duplicate]
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How to merge lists into a list of tuples?
What is the Pythonic approach to achieve the following?
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Create list of single item repeated N times
I want to create a series of lists, all of varying lengths. Each list will contain the same element e , repeated n times (where n = length of the list).
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Replace non-ASCII characters with a single space
I need to replace all non-ASCII (\x00-\x7F) characters with a space. I'm surprised that this is not dead-easy in Python, unless I'm missing something. The following function simply removes all non-ASCII characters:
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