Jan 18, 2011 · An expression statement evaluates an expression and discards the result. (Any expression can be used; there are no other distinguishing features of an expression …

Sep 30, 2013 · What do you prefer concerning performance (memory consumption, speed) / readability, if you need to switch variable value between 0 and 1 in a cycle: x=get(x) for i in …

Aug 21, 2008 · For example, C++ has the so-called expression-statement as the subcategory, and uses the discarded-value expression evaluation rules to specify the general cases of full …

Apr 16, 2017 · The print statement has long appeared on lists of dubious language features that are to be removed in Python 3000, such as Guido's "Python Regrets" presentation 1. As such, …

Contrast this with a statement, which is a Python instruction that does not evaluate down to a value. A Python statement is pretty much everything else that isn't an expression. Here's an …

Something like raise Exception is a statement but not an expression: you can't write a = (raise Exception). yield being an expression means that b = (yield a) is valid code in a generator. If …

Nov 22, 2013 · It used to be a statement, and it's most commonly used as an entire statement, but in Python 2.5, it was turned into an expression as part of new coroutine support. It's still …

Sep 13, 2023 · As you can see only one print statement is executed, so Python really didn't even look at the right operand. This is not the case for the binary operators. Those always evaluate …

Sep 2, 2015 · x = .. is a statement while y = 2 is an expression that yielded a value. In both of these examples we see that it is the grammar production that determined if it is treated as …

Oct 6, 2010 · An expression is a instruction to be executed that returns a value (even if it returns a void). A statement is used to form the sequence of a program (e.g. if-then, while-do …