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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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How do I check out a specific version of a submodule using 'git submodule'?
How would I go about adding a Git submodule for a specific tag or commit?
2 Answers
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Why are floating point numbers inaccurate?
Why do some numbers lose accuracy when stored as floating point numbers?
6 Answers
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pyplot axes labels for subplots
I have the following plot:
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What does template mean?
When declaring a template, I am used to having this kind of code:
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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...
What is RSS and VSZ in Linux memory management
What are RSS and VSZ in Linux memory management? In a multithreaded environment how can both of these can be managed and tracked?
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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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What does .SD stand for in data.table in R
.SD looks useful but I do not really know what I am doing with it. What does it stand for? Why is there a preceding period (full stop). What is happening when I use it?
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