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Simple argparse example wanted: 1 argument, 3 results

...or meddle with formatting lines on the screen or change option characters. All I want to do is "If arg is A, do this, if B do that, if none of the above show help and quit" . ...
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XMLHttpRequest Origin null is not allowed Access-Control-Allow-Origin for file:/// to file:/// (Serv

I'm trying to create a website that can be downloaded and run locally by launching its index file. 9 Answers ...
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NSString tokenize in Objective-C

...wered Jan 11 '09 at 11:54 Matt GallagherMatt Gallagher 14.4k22 gold badges3838 silver badges4141 bronze badges ...
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Convert Long into Integer

...yslov the question was about Long values, not about null values. And personally I believe in rejecting null up front rather than using null in -> null out and thereby transporting null through my application. So one could also argue this is the worst answer :-) – Sean Patric...
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Geometric Mean: is there a built-in?

...pplication I had in mind they are the same, but of course this is not generally true. Thus, if you want to include optional propagation of zeros, and treat the length(x) differently in the case of NA removal, the following is a slightly longer alternative to the function above. gm_mean = function(x...
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Kill child process when parent process is killed

...plication dies, you are still left with child processes running. What we really want is for the child processes to die as soon as the main process dies. The solution is to use "job objects" http://msdn.microsoft.com/en-us/library/ms682409(VS.85).aspx. The idea is to create a "job object" for your ...
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What does the 'u' symbol mean in front of string values? [duplicate]

Yes in short i would like to know why am I seeing a u in front of my keys and values. 2 Answers ...
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Converting strings to floats in a DataFrame

...newer version of pandas (0.17 and up), you can use to_numeric function. It allows you to convert the whole dataframe or just individual columns. It also gives you an ability to select how to treat stuff that can't be converted to numeric values: import pandas as pd s = pd.Series(['1.0', '2', -3]) p...
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How to initialize a vector in C++ [duplicate]

...p;arr[0]+N; } And then you can do this without having to repeat the size all over: int vv[] = { 12,43 }; std::vector<int> v(begin(vv), end(vv)); share | improve this answer | ...
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Best way to add comments in erb

... you can embed every ruby code between: <%= and the other: %>, typically all written in one line. In addition, ruby one-line comments start always with #, so the <%=# Comment %> style matches perfectly with both pure-ruby and erb styles for one-line comments. ...