510 questions
2
votes
0
answers
66
views
New Dialog Class Incorrect Button Style
I was trying to make a subclass that acts like the original but its go function returned the string of the text of the button, instead of the index of the button.
My own defined subclass makes the ...
- 21
-1
votes
1
answer
64
views
Using .get() from an entry in tkinter within a class
I am trying to get the entered value from an entry widget to record in a text file, I've tried a lot but am not sure where to go from here.
It come up with this Error:
Exception in Tkinter callback ...
- 33
1
vote
0
answers
103
views
Exclude methods consisting of a single pass statement from coverage reports in python
In my class, I have some methods that can be overridden by subclasses, but do not need to be.
I like to test my project and generate a coverage report using coverage.py.
Because the method of the ...
- 581
0
votes
0
answers
36
views
Accessing a sibling inner class in initialiser
Consider the following code, if you will:
class ParentService:
BASE_DIR = '/some/path'
class Results(str, Enum):
RESULT1 = 'ResultOne.xlsx'
RESULT2 = 'ResultTwo.pdf'
...
- 496
2
votes
1
answer
266
views
Return a different class based on an optional flag in the arguments without factory
I am implementing a series of classes in Equinox to enable taking derivatives with respect to the class parameters. Most of the time, the user will be instantiating class A and using the fn function ...
- 173
-2
votes
2
answers
60
views
discord.ext.commands.errors.CommandNotFound: Command "coucou" is not found
I'm trying to create a bot Discord with Python.
I created a class MyBot like this:
import discord
from discord.ext import commands
intents = discord.Intents.all()
intents.members = True
class MyBot(...
- 1
1
vote
1
answer
44
views
Adding a second class breaks tkinter variable
I have a class for a GUI with two radio buttons one to set save_to_excel to True and the other to False. However I wanted to add a loading screen using threading, but when I add that second class the ...
- 21
0
votes
1
answer
43
views
I wrote the code for this analog clock, but I don't know why place of the numbers are not correct
import pygame
from math import radians, sin, cos
from datetime import datetime
class Clock:
def __init__(self):
self.width, self.height = 800, 800
self.white = (255, 255, 255)
...
1
vote
1
answer
62
views
How to inherit (from a parent class) dataclass field introspection functionality?
I have a parent dataclass, and various other classes will then extend this parent dataclass. Let's call these dataclasses DCs. In the example code below, see ParentDC, and an example ChildDC:
from ...
- 4,664
0
votes
1
answer
56
views
Trying to center and uniformly space a 4x4 grid of entry widgets within a frame, within a frame class. What am I missing?
First up, I'm really pretty bad at OOP and tkinter/customtkinter and this is only my third project I've built with classes over straight functions, so please excuse my mess. I'm getting there, and ...
- 166
0
votes
2
answers
67
views
Python decorators with class methods
I want a decorator that I can use as both @decorator and decorator() with class methods, like this :
def decorator_with_args(name):
print(f'Hello {name} !')
def decorator(func):
def ...
0
votes
0
answers
34
views
Having a problem with calling the class twice
import tkinter as tk
import math,time,random
from PIL import ImageTk, Image,ImageEnhance
start_time = time.time()
window = tk.Tk()
window.geometry("300x300")
canvas = tk.Canvas(window, ...
- 41
1
vote
3
answers
84
views
How to display an image with classes in tkinter?
import tkinter as tk
from PIL import ImageTk, Image
window = tk.Tk()
window.geometry("300x300")
canvas = tk.Canvas(window, width=300, height=300,bg="red")
canvas.pack()
class ...
- 41
0
votes
0
answers
354
views
OpenAI API upgrade from 0.28 to 1.x
I am trying to upgrade the OpenAI 0.28 version to 1.2.2. For doing that I defined the client and replaced the openai chatcompletion with client.
Below is the constant file which will be used in the ...
0
votes
1
answer
40
views
How can I substitute an imported python class in a .py file without modifying the file itself?
What I'd like to achieve is:
b.py(might be in a third party package I cannot modify):
from xxx import A
class B:
def __init__():
self.a = A()
The file I actually execute:
execute.py
...
- 143
0
votes
3
answers
59
views
For class created from Python turtle module, instead of return functions at each method, how can data created from a method be used in different one?
For a class (snake class) created from the turtle module in Python:
Problem 1.
when the move() method is called, the snake segments are moving backwards instead of forward . The problem seems to be ...
- 23
-1
votes
1
answer
101
views
How to add class variable values to a list, python 3x?
I'm trying to add class variable values to a list inside a function, but I'm not seeing any errors or the expected output? The comboxbox doesn't display when I uncomment the list code.
Outside of the ...
- 15.8k
0
votes
0
answers
41
views
Unable to properly initialize a tkinter scrollbar inside a UI
I'm not an expert python programmer. After some time and effort I've built a tkinter UI that properly works. Recently, I've found myself needing to add a scrollbar inside the frame, since I need to ...
0
votes
3
answers
122
views
How to run multiple instances of an object with two threads inside each object?
I'm trying to wrap two threaded functions inside an object and run a couple of instances of the object. So far I could only run the objects if I pull the threading outside the class.
import threading
...
- 3
0
votes
2
answers
925
views
List all properties defined on a Pydantic BaseModel
Is there an elegant way to list all properties defined on a Pydantic BaseModel?
It's possible to extract the list of fields via BaseModel.model_fields and the list of computed fields via BaseModel....
- 16.7k
1
vote
2
answers
131
views
On demand Python imports
I have the following situation: A module that contains a class Foo with some additional convenience functions for assembling Foo objects. A Foo object contains methods for interacting with data in an ...
- 205
0
votes
1
answer
165
views
Programatically create multiple instances of CustomTkinter Combobox Python
New to python and trying to create an app with customtkinter. The app lets users pick values from different drop-downs and generates codes based on the chosen value.
Updated per comment from Mike-SMT:
...
- 2,763
4
votes
3
answers
238
views
How to correctly define a classmethod that accesses a value of a mangled child attribute?
In Python, how do I correctly define a classmethod of a parent class that references an attribute of a child class?
from enum import Enum
class LabelledEnum(Enum):
@classmethod
def list_labels(...
- 16.7k
2
votes
1
answer
44
views
Python convert class instance variable to nested structure
Defining a class of instance variable from commonly used fields in API response by looping through each JSON record
self.id=response['identifier'] -->output: 1234
self.name=response['...
- 23
0
votes
0
answers
241
views
ValueError: Attempt to convert a value (class) with an unsupported type (class) to a Tensor
these codes were running flawlessly on tensorflow==2.15, for the purpose of GPU acceleration, I switched to tensorflow-gpu == 2.10.1 with keras 2.10, respectively. and this ValueError raised up on my ...
- 329
1
vote
1
answer
159
views
ROS (Robot Operating System) simple publisher and subscriber using class in python
I am trying to run a simple code in ROS to create a subscriber and a publisher using classes in python. I am new to using classes in python and I am not sure what I am doing wrong here.
Below is the ...
- 13
0
votes
0
answers
41
views
Updating class attributes in python
I have two classes Player and LineUp, one is used within the other (shown below). I am trying to update my LineUp class after I have already instantiated it.
class Player:
def __init__(self, ...
- 21
0
votes
2
answers
67
views
How can I retain a reference to the parent object when creating an instance of a nested class through the outer object in Python?
Is it possible to retain a reference to the parent object when creating an instance of a nested class through the outer object, without explicitly passing the parent object as an argument?
class ...
0
votes
1
answer
48
views
How is class Franchise, linked with Class Menu? in Below Python Code?
What informs the code that The relationship between the Franchise and Menu classes is that The Franchise class has an attribute menus that stores instances of the Menu class, when clearly Menu and ...
0
votes
1
answer
68
views
Quit Tkinter application by calling class method
I am trying to build a splash screen that I will be able to call from an external application using Tkinter. I'd like to define my GUI in a class, like this:
class Splash:
def __init__(self):
...
- 522
0
votes
1
answer
555
views
Error while using a custom class in Python: 'AttributeError: 'module' object has no attribute 'MyClass
I'm facing an issue while working with a custom class in Python. I have a module named 'my_module' with a class called 'MyClass'. However, when I try to instantiate the class in another script or ...
-2
votes
1
answer
475
views
Python Selenium AttributeError: object has no attribute
The problem is although i can see the method I'm calling, the error says I don't have a method the way I call. Here is the error:
Traceback (most recent call last):
File "C:\Users\htuna\...
- 1
0
votes
0
answers
27
views
In python class, how to pass returned value of a method of a class as input to another method of the same class
I am using boto3 library to establish connection to an s3 compatible storage. I had created a class with constructor that take cluster details, access key & IDs as inputs, having these initiated. ...
0
votes
1
answer
74
views
Understanding this class intialization in python
I have this piece of code, part of a Spikingjelly neural network training functionality, which gets some errors on this line after running. I'm not quite experienced in Python, and I don't understand ...
-2
votes
2
answers
118
views
Why are these 2 python class instance could equal to each other?
from dataclasses import dataclass
@dataclass
class ThreeDPoint:
x: int | float
y = 0.0
z: int | float = 0.0
point_1 = ThreeDPoint(1.0,2)
point_3 = ThreeDPoint(1,2)
print(point_1 == ...
0
votes
1
answer
58
views
A script changes the source code of class. Why can the effect not be observed in the same console or test, where the script was run?
I have written a script, that automatically adds a property to a class.
It works, but currently I can not test it.
The code is shown below, but can also be seen on GitHub.
See the class Cat,
the ...
- 1,209
0
votes
0
answers
33
views
how I can describe that my function return (or need) a object with same type that the class I'm building? [duplicate]
I'm have an unexpected problem. This is a random example, but describe the problem it self.
With this code:
class Location:
def __init__(self, name: str) -> None:
self.name = name
...
0
votes
1
answer
672
views
Automatically calling class function after init
I want to automate a class method which would be called right after __init__ has completed.
e.g,
class A:
def __init__(self):
initialization statement
def post_init(self):
#...
- 7
0
votes
2
answers
865
views
Decorate all functions of a Python class while being able to access the class attributes within the decorator
I've got a class and would like to apply a decorator to all functions within that class without having to add a function decorator to every single function.
I know that there are solutions like the ...
- 11
-1
votes
2
answers
133
views
Struggling with class methods, cls, and self when using functions cross classes in python while updating a dictionary
I am trying to build a small UI for updating some settings and then displaying some intake data on a raspberrypi. Python version is 3.9.2. The most logical way to save the settings I thought would be ...
- 1,086
0
votes
2
answers
48
views
Turtle doing nothing in embedded Tkinter window
I am trying to make a program in which you can draw different shapes. I already managed to embed the turtlescreen into my already existing Tkinter one (root) and got a Tkinter Menu, in which I can run ...
- 1
1
vote
1
answer
137
views
Python overload __setitem__ does not replace self out of the class range
I am trying to create a kind of dataframe subclass with inheritance of polars.DataFrame. I would like to modify the __setitem__ method to make following statement possible:
df['test_column'] = 'test'
...
- 81
0
votes
1
answer
155
views
DataFlow Code returning empty output for DoFn class
I am trying to run the below code using dataflow, where I have 2-3 functions defined inside a class, out of which 2 functions are working but the send_email() is working nor throwing any errors.
...
- 1,552
0
votes
3
answers
125
views
What is the logic of changing class variables?
The following code was supposed to clarify how Python class variables behave,but somehow it opens more questions than it solves.
The class Bodyguard has the variable protect, which is a list that by ...
- 1,209
-1
votes
1
answer
75
views
I developed a class for generating images, but I have a type problem (name 'train_step' is not defined) that I can't
Here's the complete class code with an example of its implementation.
import tensorflow as tf
import numpy as np
import time
from tensorflow.keras.applications.inception_v3 import InceptionV3
from ...
- 35
0
votes
0
answers
76
views
Tkinter result page with possible cyclic dependency
I'm having trouble creating a results page for a tkinter GUI that I've made. The problem is that the page2 file has to import the page3 file in order to go to page3 when clicked with a button. In the ...
- 11
2
votes
1
answer
2k
views
Method for correct/pythonic way to use @cached_property to set a permanent attribute on a Python class
I am trying to set a permanent attribute on a class to be used by other methods throughout the life of the instance of the class
class Test:
@cached_property
def datafile_num_rows(self) -> ...
- 12.7k
0
votes
1
answer
51
views
Merge private attributes in Python
I know that private attributes are loosely defined in Python, but I'm trying to figure out what would be the most lean way of implementing a method to merge together private attributes.
Class Event:
...
- 62
1
vote
2
answers
207
views
Python - pass arguments when adding a button to plot's toolbar (matplotlib)
I am trying to add a button to toolbar. The button is a custom class that inherits ToolToggleBase. In my custom SelectButton class, I want to pass few arguments, but I getting an error:
import numpy ...
- 174
1
vote
1
answer
1k
views
Pandas "DataFrame"s as class properties. How should I initialize them in class constructor __init__()?
I have a class which will manage multiple pandas Data Frames. The Data frames are class properties. I have initiated every Data Frame in the class constructor and assigned an empty Data Frame to them (...
- 38