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How to retrieve an element from a set without removing it?

... tl;dr for first_item in muh_set: break remains the optimal approach in Python 3.x. Curse you, Guido. y u do this Welcome to yet another set of Python 3.x timings, extrapolated from wr.'s excellent Python 2.x-specific response. Unlike AChampion's equally helpful Python 3.x-specific response, th...
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Plot a bar using matplotlib using a dictionary

...lues()), align='center') plt.xticks(range(len(D)), list(D.keys())) # # for python 2.x: # plt.bar(range(len(D)), D.values(), align='center') # python 2.x # plt.xticks(range(len(D)), D.keys()) # in python 2.x plt.show() Note that the penultimate line should read plt.xticks(range(len(D)), list(D.k...
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How do I merge a list of dicts into a single dict?

..... >>> result {'a':1,'c':1,'b':2,'d':2} As a comprehension: # Python >= 2.7 {k: v for d in L for k, v in d.items()} # Python < 2.7 dict(pair for d in L for pair in d.items()) share | ...
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Is there a command line utility for rendering GitHub flavored Markdown?

... I wrote a small CLI in Python and added GFM support. It's called Grip (Github Readme Instant Preview). Install it with: $ pip install grip And to use it, simply: $ grip Then visit localhost:5000 to view the readme.md file at that location. ...
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Best programming aids for a quadriplegic programmer

...stem is not perfect, but it works. I program mostly in C++, but I also use python. If you want to, I will help you with that. I have to warn you, it takes few months to get used to speech to text software and train it. moreover, I am not native English speaker, am sure that gets in the way Do not...
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python re.sub group: number after \number

....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f5984633%2fpython-re-sub-group-number-after-number%23new-answer', 'question_page'); } ); Post as a guest ...
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Replace all elements of Python NumPy Array that are greater than some value

... NOTE: this doesn't work if the data is in a python list, it HAS to be in a numpy array (np.array([1,2,3]) – mjp May 8 '17 at 14:28 ...
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How can I recover the return value of a function passed to multiprocessing.Process?

...: should use args=(my_function_argument, ). Note the , comma here! Or else Python will complain "missing positional arguments". Took me 10 minutes to figure out. Also check the manual usage (under the "process class" section). – yuqli Apr 29 '19 at 15:17 ...
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Python - write() versus writelines() and concatenated strings

So I'm learning Python. I am going through the lessons and ran into a problem where I had to condense a great many target.write() into a single write() , while having a "\n" between each user input variable(the object of write() ). ...
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How to get indices of a sorted array in Python

I have a numerical list: 11 Answers 11 ...