May 5, 2011 · As far as the Python languages is concerned, _ generally has no special meaning. In my opinion, to be even an intermediate Python programmer, it's one aspect of the language that it is necessary to be familiar with. keys() over iterating directly over the dictionary? Iteration over a dictionary is clearly documented as yielding keys. It is a valid identifier just like _foo, foo_ or _f_o_o_. To translate this pseudocode into Python you would need to know the data structures being referenced, and a bit more of the algorithm implementation. Mar 16, 2017 · Why is it 'better' to use my_dict. It appears you had Python 2 in mind when you answered this, because in Python 3 for key in my_dict. Mar 21, 2023 · In Python this is simply =. In a comment on this question, I saw a statement that recommended using result is not None vs result != None What is the difference? And why might one be recommended over the other? Aug 5, 2010 · What does the &gt;&gt; operator do? For example, what does the following operation 10 &gt;&gt; 1 = 5 do? Nov 29, 2011 · In Python, for integers, the bits of the twos-complement representation of the integer are reversed (as in b <- b XOR 1 for each individual bit), and the result interpreted again as a twos-complement integer. source Otherwise, any special meaning of _ is purely by 96 What does the “at” (@) symbol do in Python? @ symbol is a syntactic sugar python provides to utilize decorator, to paraphrase the question, It's exactly about what does decorator do in Python? Put it simple decorator allow you to modify a given function's definition without touch its innermost (it's closure).

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