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🖕🏻3 ways to use the assignment operator in Python and a couple of reasons not to
The walrus operato (:=) to assign value provides following advantages:
• Reducing the number of function calls, for example, result = [y := func(x), y**2, y**3] instead of result = [func(x), func(x)**2, func(x) **3]
• Reducing nested conditionals, such as when typing regular expressions, by removing nested conditions if
• Simplify while loops, such as when reading files line by line or when receiving data from a socket. Instead of a dummy infinite while loop with flow control delegated to the break statement, you can use an assignment statement to reassign the value of the command, and then apply it in that conditional while loop in the same sequence, which results in significantly shorter code.
Of course, there are limitations to using this operator. For example, it is not recommended to use it with, because. when working with ContextManager(), the context is bound to the returned discussion, i.e. to the result of this method. This may be a requirement when debugging.
Also, parenthesize when mastering to ensure that the result is applied when mastered, otherwise the calculation could be done in an arbitrary order.
Code examples: https://betterprogramming.pub/should-you-be-using-pythons-walrus-operator-yes-and-here-s-why-36297be16907
Medium Should You Be Using Python’s Walrus Operator? (Yes. And Here’s Why) Python’s controversial assignment expression — also known as walrus operator — can improve your code, and it’s time you start using it!
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