It is x that has the value, so we want to know if x is equal to 4; we don't want to tell Python that it is. In that case, you need double =: >>> x = 4 >>> print x == 4 True In any place that you can use =, you can use ==; but it will have a different meaning. For example: >>> x = 4 >>> print x 4 >>> x == 4 True x = 4 tells Python that x is ...

Dec 10, 2020 · The two equal signs are to denote that the the variable is exactly equal to the comparator for example if we say in simple words. The thing I'm comparing is exactly equal to the thing that I want, for example. 1 == 1 # This means that the number one is exactly equal to the number one. And in your case.

@frank Yes, integers are objects. Try type(1) or a = 1;a.__class__ etc. You'd have to get in to pretty deep internals of the parser to understand fully what integers have what identities (there's some interning, and other singleton-driven optimization going on if memory serves), but suffice to say 2 expressions composed of integer literals can …

Since is for comparing objects and since in Python 3+ every variable such as string interpret as an object, let's see what happened in above paragraphs. In python there is id function that shows a unique constant of an object during its lifetime. This id is using in back-end of Python interpreter to compare two objects using is keyword.

Apr 25, 2017 · What does the percentage sign mean? It's an operator in Python that can mean several things depending on the context. A lot of what follows was already mentioned (or hinted at) in the other answers but I thought it could be helpful to provide a more extensive summary. % for Numbers: Modulo operation / Remainder / Rest. The percentage sign is an ...

Apr 3, 2014 · The other case involving print >>obj, "Hello World" is the "print chevron" syntax for the print statement in Python 2 (removed in Python 3, replaced by the file argument of the print() function). Instead of writing to standard output, the output is passed to the obj.write() method. A typical example would be file objects having a write() method.

Feb 8, 2012 · For example, in the Python language documentation you refer to, an identifier is defined as a letter or an underscore, followed by a letter, a digit or an underscore. The notation then goes on to describe what a letter and a digit is defined as, and so on.

Mar 21, 2023 · The code in the question is pseudo-code; there, := represents assignment. For future visitors, though, the following might be more relevant: the next version of Python (3.8) will gain a new operator, :=, allowing assignment expressions (details, motivating examples, and discussion can be found in PEP 572, which was provisionally accepted in late June 2018).

Aug 20, 2020 · The colon is used in while loops, for loops, if statements, and functions. The colon helps the code flow into the following indented block. A single equal sign is used to assign a value to a variable, a double equal sign is used for conditions, like if var == other_var:. There is also +=, …

Oct 8, 2009 · In Python 3, they made the / operator do a floating-point division, and added the // operator to do integer division (i.e., quotient without remainder); whereas in Python 2, the / operator was simply integer division, unless one of the operands was already a floating point number. In Python 2.X: