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How do I check if a string is a number (float)?

...want is_number to return FALSE for 'NaN' this code will not work as Python converts it to its representation of a number that is not a number (talk about identity issues): >>> float('NaN') nan Otherwise, I should actually thank you for the piece of code I now use extensively. :) G. ...
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Vertically align text to top within a UILabel

... Not sure how this will affect the performance if many UILabels are converted to text views. – ninjaneer Nov 10 '13 at 12:17 2 ...
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Why use #ifndef CLASS_H and #define CLASS_H in .h file but not in .cpp?

...ne massive text file, and then perform syntax analysis and finally it will convert it to some intermediate code, optimize/perform other tasks, and finally generate the assembly output for the target architecture. Because of this, if a file is #included multiple times under one .cpp file, the compil...
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What is the point of a private pure virtual function?

...e); would call void SetState( int var, int val ) from the derived class, converting true to int. If the interface is not virtual and the virtual implementation is non-public, like in your exmaple, the author of the derived class has one less problem to think about and can simply write class MyTu...
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How can I pass parameters to a partial view in mvc 4

... Here is an extension method that will convert an object to a ViewDataDictionary. public static ViewDataDictionary ToViewDataDictionary(this object values) { var dictionary = new ViewDataDictionary(); foreach (PropertyDescriptor property in TypeDescriptor...
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URL query parameters to dict python

...e the difference with parse_qls is that since it returns a list of tuples, converting that to a dict will keep the last value instead of the first. This of course assumes there were multiple values to begin with. – reubano Apr 29 '18 at 10:21 ...
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How to Rotate a UIImage 90 degrees?

...what the source image format is // (CMYK, Grayscale, and so on) it will be converted over to the format // specified here by CGBitmapContextCreate. CGColorSpaceRef colorspace = CGImageGetColorSpace(imgRef); context = CGBitmapContextCreate (bitmapData,bounds.size.width,bounds.size.height,8,bitmapByte...
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Matplotlib scatterplot; colour as a function of a third variable

...ing of a numerical value between 0-1. For example c = '0.1' Then you can convert your third variable in a value inside this range and to use it to color your points. In the following example I used the y position of the point as the value that determines the color: from matplotlib import pyplot...
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How do you run your own code alongside Tkinter's event loop?

...his and the external code, too. pass root = tk.Tk() root.wm_title('Temp Converter') app = Application(master=root) w = 200 # width for the Tk root h = 125 # height for the Tk root # get display screen width and height ws = root.winfo_screenwidth() # width of the screen hs = root.winfo_screenhe...
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What is an xs:NCName type and when should it be used?

... How can I convert that expression to a programming language like Java or JS? – calbertts May 4 '16 at 20:14 ...