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Bash continuation lines

... like a single string which crosses lines, while indenting but not getting all those spaces, one approach you can try is to ditch the continuation line and use variables: $ a="continuation" $ b="lines" $ echo $a$b continuationlines This will allow you to have cleanly indented code at the expense ...
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Threading pool similar to the multiprocessing Pool?

... I just found out that there actually is a thread-based Pool interface in the multiprocessing module, however it is hidden somewhat and not properly documented. It can be imported via from multiprocessing.pool import ThreadPool It is implemented using a...
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How do I check if a string is a number (float)?

...r. I'm not sure that anything much could be faster than the above. It calls the function and returns. Try/Catch doesn't introduce much overhead because the most common exception is caught without an extensive search of stack frames. The issue is that any numeric conversion function has two kin...
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Which characters are valid in CSS class names/selectors?

What characters/symbols are allowed within the CSS class selectors? I know that the following characters are invalid , but what characters are valid ? ...
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Differences and relationship between glActiveTexture and glBindTexture

...ve "texture unit". Each texture unit can have multiple texture targets (usually GL_TEXTURE_1D, 2D, 3D or CUBE_MAP). 4 Answe...
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Why does GCC generate 15-20% faster code if I optimize for size instead of speed?

... gcc-4.8 1.53s 1.52s -Os In some cases you can alleviate the effect of disadvantageous optimizations by asking gcc to optimize for your particular processor (using options -mtune=native or -march=native): Processor Compiler Time (-O2 -mtune=native) Time (-Os...
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Get a filtered list of files in a directory

...t a list of files in a directory using Python, but I do not want a list of ALL the files. 14 Answers ...
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How do I execute a string containing Python code in Python?

...;>> x 4 However, the first step should be to ask yourself if you really need to. Executing code should generally be the position of last resort: It's slow, ugly and dangerous if it can contain user-entered code. You should always look at alternatives first, such as higher order functions, ...
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What is the purpose of the single underscore “_” variable in Python?

...cate that part of a function result is being deliberately ignored (Conceptually, it is being discarded.), as in code like: label, has_label, _ = text.partition(':'). As part of a function definition (using either def or lambda), where the signature is fixed (e.g. by a callback or parent class API), ...
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How can I make a time delay in Python? [duplicate]

...print less frequently than that, because it takes time to print and handle all the buffers that entails (possibly doing a kernel context switch), and to register the alarm signal, but... yeah. A little under once per minute. – Parthian Shot Jun 17 '15 at 19:29 ...