How to have Static and Method Functions with the same name Question: I’m trying to create a class for interacting with a MySQL Database. This class will connect to the database storing the connection object and cursor. Allowing for multiple actions without reconnecting every time. Once you’re done with it, the cursor and connection need …
When should a static method be a function? Question: I am writing a class for an image processing algorithm which has some methods, and notably a few static methods. My IDE keeps telling me to convert static methods to function which leads me to the following question: When should a static method be turned into …
Unable to call static method inside another static method Question: I have a class which has static methods and I want to have another static method within this class to call the method but it returns NameError: name ”method_name’ is not defined Example of what I’m trying to do. class abc(): @staticmethod def method1(): print(‘print …
super() and @staticmethod interaction Question: Is super() not meant to be used with staticmethods? When I try something like class First(object): @staticmethod def getlist(): return [‘first’] class Second(First): @staticmethod def getlist(): l = super(Second).getlist() l.append(‘second’) return l a = Second.getlist() print a I get the following error Traceback (most recent call last): File “asdf.py”, line …
How can I dynamically create class methods for a class in python Question: If I define a little python program as class a(): def _func(self): return "asdf" # Not sure what to resplace __init__ with so that a.func will return asdf def __init__(self, *args, **kwargs): setattr(self, ‘func’, classmethod(self._func)) if __name__ == "__main__": a.func I receive …
Why use classmethod instead of staticmethod? Question: I know what they do and I’ve seen many examples of both, but I haven’t found a single example where I would have to use classmethod instead of replacing it with a staticmethod. The most common example of classmethod I’ve seen is for creating a new instance of …
Calling class staticmethod within the class body? Question: When I attempt to use a static method from within the body of the class, and define the static method using the built-in staticmethod function as a decorator, like this: class Klass(object): @staticmethod # use as decorator def _stat_func(): return 42 _ANS = _stat_func() # call the …
Meaning of @classmethod and @staticmethod for beginner Question: What do @classmethod and @staticmethod mean in Python, and how are they different? When should I use them, why should I use them, and how should I use them? As far as I understand, @classmethod tells a class that it’s a method which should be inherited into …
Module function vs staticmethod vs classmethod vs no decorators: Which idiom is more pythonic? Question: I’m a Java developer who’s toyed around with Python on and off. I recently stumbled upon this article which mentions common mistakes Java programmers make when they pick up Python. The first one caught my eye: A static method in …
Calling static method in python Question: I have a class Person and a static method in that class called call_person: class Person: def call_person(): print “hello person” In the python console I import the class Person and call Person.call_person(). But it is giving me error that says ‘module’ object has no attribute ‘call_person’. Can anyone …
