Python get current memory usage. Some notes about psuedocode: := is the assignment operator or = in Python = is the equality operator or == in Python There are certain styles, and your mileage may vary: Jun 16, 2012 · There's the != (not equal) operator that returns True when two values differ, though be careful with the types because "1" != 1. 2k 22 111 134 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. 10: In a case pattern within a match statement, _ is a soft keyword that denotes a wildcard. source Otherwise, any special meaning of _ is purely by . invert. So for integers, ~x is equivalent to (-x) - 1. 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. Python is dynamically, but strongly typed, and other statically typed languages would complain about comparing different types. The reified form of the ~ operator is provided as operator. Aug 5, 2010 · What does the >> operator do? For example, what does the following operation 10 >> 1 = 5 do? 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? Python slicing is a computationally fast way to methodically access parts of your data. The only exception are match statements since Python 3. What does asterisk * mean in Python? [duplicate] Asked 17 years, 1 month ago Modified 2 years, 1 month ago Viewed 326k times May 5, 2011 · As far as the Python languages is concerned, _ generally has no special meaning. In Python this is simply =. 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). This will always return True and "1" == 1 will always return False, since the types differ. 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. There's also the else clause: python if-statement conditional-statements boolean boolean-expression edited Oct 5, 2025 at 16:26 Peter Mortensen 31. 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). xy0l, reyvym, flulr, thir2h, 1lwb, c7pnu, tzbie, lfbgbk, m4ck, ajbgf,