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How to process SIGTERM signal gracefully?
Let's assume we have such a trivial daemon written in python:
7 Answers
7
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What is the most efficient way of finding all the factors of a number in Python?
...the factors, very quickly, of a number n.
Why square root as the upper limit?
sqrt(x) * sqrt(x) = x. So if the two factors are the same, they're both the square root. If you make one factor bigger, you have to make the other factor smaller. This means that one of the two will always be less than o...
How to list all functions in a Python module?
...I'd like to be able to see what functions/classes/methods are available in it.
17 Answers
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Python: Is it bad form to raise exceptions within __init__?
Is it considered bad form to raise exceptions within __init__ ? If so, then what is the accepted method of throwing an error when certain class variables are initialized as None or of an incorrect type?
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File Upload ASP.NET MVC 3.0
...face: this question is about ASP.NET MVC 3.0 which was released in 2011 , it is not about ASP.NET Core 3.0 which was released in 2019)
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How to len(generator()) [duplicate]
...e no length, they aren't collections after all.
Generators are functions with a internal state (and fancy syntax). You can repeatedly call them to get a sequence of values, so you can use them in loop. But they don't contain any elements, so asking for the length of a generator is like asking for t...
What's the difference between a Python “property” and “attribute”?
...hon encounters the following code:
spam = SomeObject()
print(spam.eggs)
it looks up eggs in spam, and then examines eggs to see if it has a __get__, __set__, or __delete__ method — if it does, it's a property. If it is a property, instead of just returning the eggs object (as it would for ...
snprintf and Visual Studio 2010
...ented snprintf in Visual Studio 2015. On earlier versions you can simulate it as below.
Long version:
Here is the expected behavior for snprintf:
int snprintf( char* buffer, std::size_t buf_size, const char* format, ... );
Writes at most buf_size - 1 characters to a buffer. The resulting
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What are good uses for Python3's “Function Annotations”
...semantics like state restrictions, threads that are allowed to access, architecture limitations, etc., and there are quite a few tools that can then read these and process them to provide assurances beyond what you get from the compilers. You could even write things that check preconditions/postcond...
Shared-memory objects in multiprocessing
... have a function func that takes in this giant array as input (together with some other parameters). func with different parameters can be run in parallel. For example:
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