Python’s built-in hashing function,hash(), returns an integer value representing the input object. The code then uses the resulting hash value to determine the object’s location in the hash table. This hash table is a data structure that implements dictionaries and sets. The code below demo...
You might be able to use this directly in Python via thesubprocesslibrary. Outsourcing the reverse complement step to a utility written in C will almost always beat the best that Python can do, and you can do nice and important things like bounds checking etc....
The Future for Python 2.x Python 2.7 is the last major release in the 2.x series, as the Python maintainers have shifted the focus of their new feature development efforts to the Python 3.x series. This means that while Python 2 continues to receive bug fixes, and to be updated to ...
In this tutorial, you'll explore Python's __pycache__ folder. You'll learn about when and why the interpreter creates these folders, and you'll customize their default behavior. Finally, you'll take a look under the hood of the cached .pyc files.
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Interning strings is useful to gain a little performance on dictionary lookup—if the keys in a dictionary are interned, and the lookup key is interned, the key comparisons (after hashing) can be done by a pointer compare instead of a string compare. (Source)Interned...
In the same way, you could have used the tuple itself: >>> var3[(1, 2, 3)] 'var1' >>> var3[1, 2, 3] 'var1' Pycon Based on what we saw, hashing an object can be thought as converting it to an integer based on its content, but not on the identity of the object itsel...
What is the difference between encrypting and hashing? The main difference between encryption and hashing lies in the purpose of their usage; while encryption is used to make data unreadable by unauthorized users while allowing authorized parties to decode it, hashing is mainly used for verifying it...
(This causes what's known as a hash collision, and degrades the constant-time performance that hashing usually provides.)▶ Deep down, we're all the same.class WTF: passOutput:>>> WTF() == WTF() # two different instances can't be equal False >>> WTF() is WTF() # identities ...
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