Let’s consider the code below. On first look, one might expect list_1 and list_2 to both have the same content: [“Tom”, “Tom”], but this is not the case. list_1 evaluates to [“Tom”, “Tom”], whereas list_2 evaluates to [“John”, “John”]. I read that when a function is nested inside a class, Python will use variables defined in the module scope and
Tag: oop
Main code in running but the other code doesn’t run
I am learning design pattern in python and the subject is singleton objects so, I was writing my main code as PRO003 and import it into PRO004. This is PRO003 Code: And This is PRO004 code: But This Is The Output: I think this code want self, but self is not giving and it is by class and it must
How to print an instance of a parent class in base class?
I am able to print the name of Class Student when I inherit the class into Sports and define the values in the init method. but I am not able to figure out how to print the name given when Student class is created without defining the name in Sports class, When I comment out the Student.__init__(self, 1, “name1”, “addr1”,
Define a generator which updates global variables before the first __next__() call
Given the following function in python I would like to update the global variable before calling “next()”. Let me show it to you with an example. Then you can run: Which outputs the following: Finally: please note that there is a way of doing this via a class definition that has a class variable, but I’m currently wondering for a
In PyQT why somes widgets needs the “self” parameter before calling them, while others don’t
I’m a little bit confused about the use of the “self” parameter with some widgets like (QLineEdit), indeed when learning to use the QLabel widget, I used to call the class without the self paramater, or when using the QLineEdit widget, the widget wouldn’t work without the “self” parameter, here’s the code I’m working on : So here is where
Where to find discord.py bot in self attributes in order to assign roles
I am the owner of a Discord server that doesn’t have too many people so I want them to introduce themselves so I can keep track of who’s who. Upon joining, members only have access to a #introductions channel. When they type in their name, they are given the Member role. There isn’t any discord.py function that does this, so
How to change room in this game (arcade Python)
I am developing a simple platformer game using the arcade game library of Python. I am still new to this, but I have tried to use as much object oriented programming as I could. I have successfully setup two “rooms” or levels of the game. However, I cannot figure out how to move to the second room after finishing the
How do I implement the datetime module into my code?
So how do I make the string a date? The error: Answer When you’re creating your object you have to enclose the value inside quotes: Just 21.12.1999 by itself isn’t a valid Python definition of anything. You can then use strptime of the datetime.datetime module to parse it into a datetime, and retrieve the date from that value: The %d
Labels and buttons not appearing PyQt5, Python 3 [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 2 years ago. Improve this question
more than one constructor in a python class
I come from the Java programming language and I know that you can have more than one constructor there. My question now is: is that also possible in Python? My Problem: I have a class, where I have my help functions for my commands (implemented with click). These commands are not in the history class. Now my commands sometimes only