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Batch Renaming of Files in a Directory

...name(r'c:\temp\xx', r'*.doc', r'new(%s)') The above example will convert all *.doc files in c:\temp\xx dir to new(%s).doc, where %s is the previous base name of the file (without extension). share | ...
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Random number generation in C++11: how to generate, how does it work? [closed]

...ad about it (what is that engine , maths term like distribution , "where all integers produced are equally likely "). 2...
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Regular Expression: Any character that is NOT a letter or number

... @sbmaxx I want to replace all except &, (, ) these characters. how could i add this condition in the current regex. – K Pal Feb 21 '19 at 11:24 ...
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Why does Ruby 1.9.2 remove “.” from LOAD_PATH, and what's the alternative?

... LOAD_PATH , so this broke them (they reported "no such file to load" for all require statements that based off the project path). Was there a particular justification for doing this? ...
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Android ACTION_IMAGE_CAPTURE Intent

...works just fine if we leave out the EXTRA_OUTPUT extra and returns the small Bitmap image. However, if we putExtra(EXTRA_OUTPUT,...) on the intent before starting it, everything works until you try to hit the "Ok" button in the camera app. The "Ok" button just does nothing. The camera app stays ...
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Python memory usage of numpy arrays

... The field nbytes will give you the size in bytes of all the elements of the array in a numpy.array: size_in_bytes = my_numpy_array.nbytes Notice that this does not measures "non-element attributes of the array object" so the actual size in bytes can be a few bytes larger th...
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How to make a python, command-line program autocomplete arbitrary things NOT interpreter

...ts, i.e. --help, --verbose and --version. For your purposes, you'll essentially want to customise the values that are put into opts. Do have a look at the example on the linked page, it's all pretty straightforward. share ...
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Looping through localStorage in HTML5 and JavaScript

... In addition to all the other answers, you can use $.each function from the jQuery library: $.each(localStorage, function(key, value){ // key magic // value magic }); Eventually, get the object with: JSON.parse(localStorage.getI...
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How to retry after exception?

I have a loop starting with for i in range(0, 100) . Normally it runs correctly, but sometimes it fails due to network conditions. Currently I have it set so that on failure, it will continue in the except clause (continue on to the next number for i ). ...
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Simple Digit Recognition OCR in OpenCV-Python

...stand some of the features at end) 2) Since I knew, without understanding all those features, it is difficult to do that method. I tried some other papers, but all were a little difficult for a beginner. So I just decided to take all the pixel values as my features. (I was not worried about accura...