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Getting key with maximum value in dictionary?

... You can use operator.itemgetter for that: import operator stats = {'a':1000, 'b':3000, 'c': 100} max(stats.iteritems(), key=operator.itemgetter(1))[0] And instead of building a new list in memory use stats.iteritems(). The key parameter to the max() function is a function that computes a key t...
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~x + ~y == ~(x + y) is always false?

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How can I obtain the element-wise logical NOT of a pandas Series?

...: s = pd.Series([True, True, False, True]) In [8]: ~s Out[8]: 0 False 1 False 2 True 3 False dtype: bool Using Python2.7, NumPy 1.8.0, Pandas 0.13.1: In [119]: s = pd.Series([True, True, False, True]*10000) In [10]: %timeit np.invert(s) 10000 loops, best of 3: 91.8 µs per loop ...
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Using String Format to show decimal up to 2 places or simple integer

I have got a price field to display which sometimes can be either 100 or 100.99 or 100.9, What I want is to display the price in 2 decimal places only if the decimals are entered for that price , for instance if its 100 so it should only show 100 not 100.00 and if the price is 100.2 it should displa...
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How do you push a Git tag to a branch using a refspec?

I want to force push, for example, my tag 1.0.0 to my remote master branch. 4 Answers ...
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Javascript roundoff number to nearest 0.5

...ng to screen resolution and for that i can only assign font size in pts to 1, 1.5 or 2 and onwards etc. 7 Answers ...
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Most efficient way to create a zero filled JavaScript array?

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How to check with javascript if connection is local host?

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Is R's apply family more than syntactic sugar?

... 154 The apply functions in R don't provide improved performance over other looping functions (e.g....
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Pandas groupby: How to get a union of strings

... 179 In [4]: df = read_csv(StringIO(data),sep='\s+') In [5]: df Out[5]: A B C 0 ...