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Adding a legend to PyPlot in Matplotlib in the simplest manner possible

...ll legend(loc='upper left'). Consider this sample (tested with Python 3.8.0): import numpy as np import matplotlib.pyplot as plt x = np.linspace(0, 20, 1000) y1 = np.sin(x) y2 = np.cos(x) plt.plot(x, y1, "-b", label="sine") plt.plot(x, y2, "-r", label="cosine") plt.legend(loc="upper left") plt.y...
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Why is “if not someobj:” better than “if someobj == None:” in Python?

... 190 In the first test, Python try to convert the object to a bool value if it is not already one. Ro...
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Filter dict to contain only certain keys?

... 706 Constructing a new dict: dict_you_want = { your_key: old_dict[your_key] for your_key in your_...
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CSS3 transform not working

I am trying to transform my menu items by rotating them 10 degrees. My CSS works in Firefox but I've failed to replicate the effect in Chrome and Safari. I know IE doesn't support this CSS3 property so that's not a problem. ...
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UICollectionView spacing margins

...-> UIEdgeInsets { return UIEdgeInsets(top: 25, left: 15, bottom: 0, right: 5) } share | improve this answer | follow | ...
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How to watch for array changes?

... 10 Answers 10 Active ...
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How to empty a list in C#?

...ecrocomment this because some misinformation has been provided here as of 2020.List<T>.Clear properly clears all references which allows the GC to clear the allocs when necessary. new List<T> does NOT do this and is unsuitable in effectively all scenarios – John ...
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What Regex would capture everything from ' mark to the end of a line?

... answered May 6 '09 at 17:59 Joshua BeldenJoshua Belden 8,86755 gold badges3232 silver badges5151 bronze badges ...
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creating a random number using MYSQL

...d like to know is there a way to select randomly generated number between 100 and 500 along with a select query. 6 Answers...
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Sort array of objects by string property value

... 4103 It's easy enough to write your own comparison function: function compare( a, b ) { if ( a.la...