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Bomb dropping algorithm

... | edited Mar 9 '13 at 8:46 community wiki 4 r...
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Get column index from column name in python pandas

... Sure, you can use .get_loc(): In [45]: df = DataFrame({"pear": [1,2,3], "apple": [2,3,4], "orange": [3,4,5]}) In [46]: df.columns Out[46]: Index([apple, orange, pear], dtype=object) In [47]: df.columns.get_loc("pear") Out[47]: 2 although to be honest I do...
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What is the best regular expression to check if a string is a valid URL?

... 415 I wrote my URL (actually IRI, internationalized) pattern to comply with RFC 3987 (http://www.f...
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How to get all subsets of a set? (powerset)

... | edited Jun 9 '19 at 17:49 Ran Feldesh 53955 silver badges1313 bronze badges answered Sep 26 '09 at 22...
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Looping over a list in Python

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What does -1 mean in numpy reshape?

... 614 The criterion to satisfy for providing the new shape is that 'The new shape should be compatible...
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pandas: filter rows of DataFrame with operator chaining

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What is the smallest possible valid PDF?

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efficient circular buffer?

...range(20): ... d.append(i) ... >>> d deque([10, 11, 12, 13, 14, 15, 16, 17, 18, 19], maxlen=10) There is a recipe in the docs for deque that is similar to what you want. My assertion that it's the most efficient rests entirely on the fact that it's implemented in C by an incredibly s...
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NameError: global name 'unicode' is not defined - in Python 3

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