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Get key by value in dictionary

... 34 Answers 34 Active ...
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Generate a heatmap in MatPlotLib using a scatter data set

...matplotlib.pyplot as plt # Generate some test data x = np.random.randn(8873) y = np.random.randn(8873) heatmap, xedges, yedges = np.histogram2d(x, y, bins=50) extent = [xedges[0], xedges[-1], yedges[0], yedges[-1]] plt.clf() plt.imshow(heatmap.T, extent=extent, origin='lower') plt.show() This m...
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When to use window.opener / window.parent / window.top

... 163 window.opener refers to the window that called window.open( ... ) to open the window from which...
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Good example of livelock?

... | edited Sep 30 '15 at 17:42 answered Jan 14 '12 at 16:45 ...
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How do I save and restore multiple variables in python?

... here... # Saving the objects: with open('objs.pkl', 'w') as f: # Python 3: open(..., 'wb') pickle.dump([obj0, obj1, obj2], f) # Getting back the objects: with open('objs.pkl') as f: # Python 3: open(..., 'rb') obj0, obj1, obj2 = pickle.load(f) If you have a lot of data, you can reduce...
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what is the right way to treat Python argparse.Namespace() as a dictionary?

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What is the Python 3 equivalent of “python -m SimpleHTTPServer”

What is the Python 3 equivalent of python -m SimpleHTTPServer ? 5 Answers 5 ...
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Multiprocessing: How to use Pool.map on a function defined in a class?

...e defaultdict. – sans Jul 8 '11 at 23:41 2 ...
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Format bytes to kilobytes, megabytes, gigabytes

... size info to kilobytes, megabytes and gigabytes? For instance I have an MP3 that Ubuntu displays as "5.2 MB (5445632 bytes)". How would I display this on a web page as "5.2 MB" AND have files less than one megabyte display as KB and files one gigabyte and above display as GB? ...
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Declaring variables inside or outside of a loop

... | edited Aug 6 '17 at 13:35 answered Jan 10 '12 at 13:12 ...