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AWK: Access captured group from line pattern

... answered Jun 2 '10 at 12:50 Peter TillemansPeter Tillemans 33k99 gold badges7272 silver badges109109 bronze badges ...
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Parse (split) a string in C++ using string delimiter (standard C++)

...>=tiger"; std::string delimiter = ">="; std::string token = s.substr(0, s.find(delimiter)); // token is "scott" The find(const string& str, size_t pos = 0) function returns the position of the first occurrence of str in the string, or npos if the string is not found. The substr(size_t p...
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How to print to console in pytest?

... that particular test. For example, def test_good(): for i in range(1000): print(i) def test_bad(): print('this should fail!') assert False Results in the following output: >>> py.test tmp.py ============================= test session starts =======================...
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Generate random string/characters in JavaScript

...aracter string composed of characters picked randomly from the set [a-zA-Z0-9] . 77 Answers ...
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Changing the “tick frequency” on x or y axis in matplotlib?

...t to tick marks with plt.xticks: plt.xticks(np.arange(min(x), max(x)+1, 1.0)) For example, import numpy as np import matplotlib.pyplot as plt x = [0,5,9,10,15] y = [0,1,2,3,4] plt.plot(x,y) plt.xticks(np.arange(min(x), max(x)+1, 1.0)) plt.show() (np.arange was used rather than Python's ra...
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CSS Box Shadow - Top and Bottom Only [duplicate]

...operty can accept a comma-separated list of shadows like this: box-shadow: 0px 10px 5px #888, 0px -10px 5px #888; This will give you some control over the "amount" of shadow in each direction. Have a look at http://www.css3.info/preview/box-shadow/ for more information about box-shadow. Hope this w...
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Display number with leading zeros

... 1150 In Python 2 (and Python 3) you can do: print "%02d" % (1,) Basically % is like printf or spri...
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Generate random integers between 0 and 9

How can I generate random integers between 0 and 9 (inclusive) in Python? 19 Answers 1...
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How do I create test and train samples from one dataframe with pandas?

...ering how I would be able to split the dataframe into two random samples (80% and 20%) for training and testing. 23 Answers...
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Deleting lines from one file which are in another file

... answered Jan 24 '11 at 9:06 gabuzogabuzo 6,27833 gold badges2323 silver badges3535 bronze badges ...