syntax - Python integer incrementing with ++ - Stack Overflow
Python doesn't really have ++ and --, and I personally never felt it was such a loss. I prefer functions with clear names to operators with non-always clear semantics (hence the classic interview question about ++x vs. x++ and the difficulties of overloading it).
What does colon equal (:=) in Python mean? - Stack Overflow
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).
syntax - What does the "at" (@) symbol do in Python? - Stack …
Jun 17, 2011 · Decorator Syntax: A google search for "decorator python docs" gives as one of the top results, the "Compound Statements" section of the "Python Language Reference." Scrolling down to the section on function definitions, which we can find by searching for the word, "decorator", we see that... there's a lot to read.
python - What does ** (double star/asterisk) and * (star/asterisk) …
Aug 31, 2008 · In Python 3.5, you can also use this syntax in list, dict, tuple, and set displays (also sometimes called literals). See PEP 488: Additional Unpacking Generalizations .
Is there a "not equal" operator in Python? - Stack Overflow
Jun 16, 2012 · Python is dynamically, but strongly typed, and other statically typed languages would complain about comparing different types. There's also the else clause: # This will always print either "hi" or "no hi" unless something unforeseen happens. if hi == "hi": # The variable hi is being compared to the string "hi", strings are immutable in Python ...
python - Why do I get "SyntaxError: invalid syntax" in a line with ...
While it makes sense here to have answers that show problems caused by other kinds of valid syntax, this is an example where the version of Python used causes the syntax not to be valid. This question, fundamentally, is about code becoming invalid because of other parts of the code. –
How should I write a Windows path in a Python string literal?
Apr 9, 2023 · Python raw string is created by prefixing a string literal with ‘r’ or ‘R’. Python raw string treats backslash as a literal character. This is useful when we want to have a string that contains backslash and don’t want it to be treated as an escape character. Doing Manually Such as: WindowsPath("C:\meshes\as") or by using r or R:
Python try...except comma vs 'as' in except - Stack Overflow
In Python 2.6+, use the as syntax, since it is far less ambiguous and forward compatible with Python 3.x. In Python 2.5 and earlier, use the comma version, since as isn't supported. Share
What is Python's equivalent of && (logical-and) in an if-statement?
Mar 21, 2010 · Note that this is pseudo-code not Python code. In Python you cannot create functions called and or or because these are keywords. Also you should never use "evaluate" or if bool(...). Customizing the behavior of your own classes. This implicit bool call can be used to customize how your classes behave with and, or and not.
What does -> mean in Python function definitions? - Stack Overflow
Jan 17, 2013 · The optional 'arrow' block was absent in Python 2 and I couldn't find any information regarding its meaning in Python 3. It turns out this is correct Python and it's accepted by the interpreter: def f(x) -> 123: return x I thought that this might be some kind of a precondition syntax, but: I cannot test x here, as it is still undefined,