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How to sort objects by multiple keys in Python?
Or, practically, how can I sort a list of dictionaries by multiple keys?
8 Answers
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What does template mean?
When declaring a template, I am used to having this kind of code:
4 Answers
4
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vertical & horizontal lines in matplotlib
I do not quite understand why I am unable to create horizontal and vertical lines at specified limits. I would like to bound the data by this box. However, the sides do not seem to comply with my instructions. Why is this?
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Finding three elements in an array whose sum is closest to a given number
Given an array of integers, A 1 , A 2 , ..., A n , including negatives and positives, and another integer S. Now we need to find three different integers in the array, whose sum is closest to the given integer S. If there exists more than one solution, any of them is ok.
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pyplot axes labels for subplots
I have the following plot:
7 Answers
7
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Returning first x items from array
I want to return first 5 items from array. How can I do this?
5 Answers
5
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Citing the author of a blockquote using Markdown syntax
I am using the Symfony CMS and it uses Markdown for article writing. I need to do a blockquote of a quote from Benjamin Franklin and would like to have the quote followed by a citation beneath it, but right now all it does is blockquote the whole line. How does one do this in markdown syntax?
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How do I check the difference, in seconds, between two dates?
There has to be an easier way to do this. I have objects that want to be refreshed every so often, so I want to record when they were created, check against the current timestamp, and refresh as necessary.
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Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell
I have taken Problem #12 from Project Euler as a programming exercise and to compare my (surely not optimal) implementations in C, Python, Erlang and Haskell. In order to get some higher execution times, I search for the first triangle number with more than 1000 divisors instead of 500 as stated...
C++ sorting and keeping track of indexes
Using C++, and hopefully the standard library, I want to sort a sequence of samples in ascending order, but I also want to remember the original indexes of the new samples.
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