TypeError: 'Series' object is not callable in Python? Question: I am performing model selection in Python. Unfortunately, I got error "TypeError: ‘Series’ object is not callable". I don’t understand what this means and how I could solve this issue. Any suggestions? This part of the code runs without problems: def model_selection(X, *args): # Init scores …
Succinctly wrap a list in a callable that returns each list element in order for each successive call Question: I feel like I must be missing something obvious, but I can’t seem to find a succinct way of creating a a callable that returns elements of a list in order for each call. E.g. In …
How to inspect return type of Callable Question: Let’s say I have something like the following: import inspect from collections.abc import Callable # Using Python 3.10+ from typing import get_type_hints def foo(arg: Callable[…, int]) -> None: pass type_hints = get_type_hints(foo)["arg"] annotation = inspect.signature(foo).parameters["arg"].annotation # How can one get the return type `int` from either of …
How to return a value from a function which was passed another function (with arguments) as an argument? I get a TypeError Question: Edit: Sorry for not elaborating on this earlier. My function that I pass actually has arguments. It looks kind of like this: … time_elapsed = get_running_time(runner(x:int, y:int, z:int, return_values:list)) … I pass …
Python – What does it mean for a Class to be callable? Question: I am trying to understand what ‘callables’ are in Python and what it means for a class to be callable. I was playing with the following code: class A(object): def __init__(self): pass print(“Is A callable? ” + str(callable(A))) a=A() print(“created a”) a() …
How to get foreign key values with getattr from models Question: I have a model Project and i am getting the attributes of that with the following instr attr = getattr(project, ‘id’, None) project is the instance, id is the field and None is the default return type. My question is: what if I want …
dynamically adding callable to class as instance "method" Question: I implemented a metaclass that tears down the class attributes for classes created with it and builds methods from the data from those arguments, then attaches those dynamically created methods directly to the class object (the class in question allows for easy definition of web form …
TypeError: 'list' object is not callable while trying to access a list Question: I am trying to run this code where I have a list of lists. I need to add to inner lists, but I get the error TypeError: ‘list’ object is not callable. Can anyone tell me what am I doing wrong here. …
What is a "callable"? Question: Now that it’s clear what a metaclass is, there is an associated concept that I use all the time without knowing what it really means. I suppose everybody made once a mistake with parenthesis, resulting in an “object is not callable” exception. What’s more, using __init__ and __new__ lead to …
