_meta is private, but it’s relatively stable. There are efforts to formalise it, document it and remove the underscore, which might happen before 1.3 or 1.4. I imagine effort will be made to ensure things are backwards compatible, because lots of people have been using it anyway. If you’re particularly concerned about compatibility, write a … Read more
inspect.getmro(cls) works for both new and old style classes and returns the same as NewClass.mro(): a list of the class and all its ancestor classes, in the order used for method resolution. >>> class A(object): >>> pass >>> >>> class B(A): >>> pass >>> >>> import inspect >>> inspect.getmro(B) (<class ‘__main__.B’>, <class ‘__main__.A’>, <type ‘object’>)
The proper Swift operator is is: if touch.view is UIPickerView { // touch.view is of type UIPickerView } Of course, if you also need to assign the view to a new constant, then the if let … as? … syntax is your boy, as Kevin mentioned. But if you don’t need the value and only … Read more
It signifies the end of the positional only parameters, parameters you cannot use as keyword parameters. Before Python 3.8, such parameters could only be specified in the C API. It means the key argument to __contains__ can only be passed in by position (range(5).__contains__(3)), not as a keyword argument (range(5).__contains__(key=3)), something you can do with … Read more
inspect.getframeinfo and other related functions in inspect can help: >>> import inspect >>> def f1(): f2() … >>> def f2(): … curframe = inspect.currentframe() … calframe = inspect.getouterframes(curframe, 2) … print(‘caller name:’, calframe[1][3]) … >>> f1() caller name: f1 this introspection is intended to help debugging and development; it’s not advisable to rely on it … Read more
This code works on any thread: NSLog(@”%@”, NSThread.callStackSymbols); Returns an array containing the call stack symbols. Each element is an NSString object with a value in a format determined by the backtrace_symbols() function.
Take a look at the inspect module – this will do the inspection of the various code object properties for you. >>> inspect.getfullargspec(a_method) ([‘arg1’, ‘arg2’], None, None, None) The other results are the name of the *args and **kwargs variables, and the defaults provided. ie. >>> def foo(a, b, c=4, *arglist, **keywords): pass >>> inspect.getfullargspec(foo) … Read more
Python has a strong set of introspection features. Take a look at the following built-in functions: type() dir() id() getattr() hasattr() globals() locals() callable() type() and dir() are particularly useful for inspecting the type of an object and its set of attributes, respectively.
Call System.Reflection.MethodBase.GetCurrentMethod().Name from within the method.
Use the built-in function dir().