Get all instances of a class python
WebJun 24, 2015 · import inspect # Works both for python 2 and 3 def getClassName (anObject): if (inspect.isclass (anObject) == False): anObject = anObject.__class__ className = anObject.__name__ return className # Works both for python 2 and 3 def getSuperClassNames (anObject): superClassNames = [] if (inspect.isclass (anObject) == … WebI've got two python files, module1.py and module2.py. In module1.py there's a class with a bunch of instances that I need to access from module2. I append each instance to a list …
Get all instances of a class python
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WebDec 16, 2016 · There are no class attributes at all on your class. Your __init__ method sets instance attributes, so you can only access those names once you have an instance and __init__ actually has run. At that point you can the vars () function to get the namespace of an instance; this gives you a dictionary, so you can get the keys: vars (x).keys () WebJan 18, 2012 · Basically, the best approach is collecting all of the instances in some container. Wait a minute, not so fast. There is a possibility that your thinking is to abuse the garbage-collected architecture. But maybe not. Let's sort it out. You cannot just "remove instance", as there is no such thing in managed application.
WebJan 1, 2024 · Also, you need to use a different name for the method that gets the instances; and it should be a classmethod, not a staticmethod. @classmethod def get_instances(cls): return cls.instances Although really you don't need a method here at all, as you can … WebPython is a dynamic language and it is always better knowing the classes you trying to get the attributes from as even this code can miss some cases. Note2: this code outputs only instance variables meaning class variables are not provided. for example:
WebJan 19, 2024 · If I use clsmembers = inspect.getmembers (sys.modules [__name__], inspect.isclass) like the accepted answer in the linked question suggests, it would return MyBaseClass and SomeOtherClass in addition to the 3 defined in this module. How can I get only NewClass, AnotherClass and YetAnotherClass? python introspection python … WebJun 27, 2008 · Is there a simple way to get all the instances of one class? Define "all". All the instances in the current scope? Perhaps more pertinent: What problem are you …
WebJan 30, 2024 · 3 Answers Sorted by: 1 you could do the following, if I got you right : Proposal tmp = globals ().copy () print (tmp) for k,v in tmp.items (): if isinstance (v, A): print (k) You must copy the global variable dictionary, because otherwise i will be changed with the first instantiation in the for-loop: Result: foo bar star Share
Web1 day ago · Python classes provide all the standard features of Object Oriented Programming: the class inheritance mechanism allows multiple base classes, a derived … how tall was queen victoria\u0027s husbandWebOct 5, 2010 · If you do have a string representing the name of a class and you want to find that class's subclasses, then there are two steps: find the class given its name, and then find the subclasses with __subclasses__ as above. How to find the class from the name depends on where you're expecting to find it. meta eagle mountainWebApr 2, 2024 · 1 You can use this: driver.find_elements_by_xpath ("//* [contains (@class,"cursor earn_pages_button profile_view_img_")]"). It will match all classes with that text. Just try to iterate through it using a for-loop. Share edited Mar 29, 2024 at 8:55 Krisztián Balla 18.6k 13 66 82 answered Apr 2, 2024 at 10:02 vimal_789 11 3 2 how tall was rachmaninovWebOct 29, 2024 · To print all instances of a class with Python, we can use the gc module. For instance, we write: import gc class A: pass a1 = A() a2 = A() for obj in gc.get_objects(): if isinstance(obj, A): print(obj) We have the A class and we create 2 instances of it, which we assigned to a1 and a2. Then we loop through the objects in memory with gc.get ... how tall was queen victoria\u0027s husband albertWebIn module1.py there's a class with a bunch of instances that I need to access from module2. 在 module1.py 中有一个 class 有一堆我需要从 module2 访问的实例。 I … meta eagle club rarityWebSep 14, 2024 · First of all, excuse my ignorance if this is a fairly easy question. What I would like to achieve is to create an attribute for every instance of the class (i.e. filepath), change it for an instance (i.e. in the first case, where I change the value of filepath for the a instance, but if I create a new instance, e.g. b I would like to keep the original filepath … metaearthWebJun 3, 2024 · All you have to do is create a class variable which will store the book information when the instance is instantiated. And then expose a class level method which return this list when Books.list gets called. Here is the code for the same class Books (object): _books_list = list () how tall was queen elizabeth\u0027s mother