python-gui | compound interest calculator based in python gui | Apps library

I am following a guide to get NLTK working on my computer and part of the process is setting up a virtual environment so I can manage packages across projects.

Here is the guide I'm following: https://docs.python-guide.org/dev/virtualenvs/

I run into an issue when I reach the part where I'm supposed to "pipenv install requests". I get the message Installing...Failed to load paths: No Python at 'c:\users\[username]\appdata\local\programs\python\**python38**\python.exe'

I have python 3.9.2 installed so my path is c:\users\[username]\appdata\local\programs\python\**python39**\python.exe. Therefore, the python38 directory does not exist, nor does the path in my environment variables.

Do I need to install 3.8.8 to be able to follow this guide? If so, can I install 3.8.8 while 3.9.2 is installed as well, or Can I switch between the two versions? should I just uninstall 3.9.2 and work with 3.8.8?

Thank you.

This came from an article describing common 'gotchas' in Python. My question is not about the gotcha he's describing or why this code below doesn't do what you might expect --it is more basic than that.

I do not understand what the iterator over the function is doing: The code is below;

there is a function:

I am trying to make an interactive graph that is displayed in the Tkinter window. However, I am not able to create a Frame object to place in the Grid of the Tkinter window.

I have created my Tkinter object in a class style here is the instantiation of it

I want to show part of my bookmarks on my Hugo website. The bookmarks from Firefox can be saved in JSON format, this is the source. The result should represent the nested structure somehow, in a format of a nested list, treeview or accordion. The source files of contents on the website are written in markdown. I want to generate a markdown file from the JSON input.

As I searched for possible solutions:

• treeview or accordion: HTML, CSS and Javascript needed. I could not nest accordions with the tag. Also, seems like overkill at the moment.
• unordered list: can be done with bare markdown.

I chose to generate an unordered nested list from JSON. I would like to do this with R.

Input sample: https://gist.github.com/hermanp/c01365b8f4931ea7ff9d1aee1cbbc391

Preferred output (indentation with two spaces):

I am trying to model an established Python project based on the recommendeded project structure according to https://docs.python-guide.org/writing/structure/.

After switching to this new structure, I now need to run the script with $ python3 -m sample.runner instead of just $ python3 runner.py or else I get a ModuleNotFoundError. I am trying to understand why that is and whether or not it can be avoided?

Runnning $ python3 runner.py with the new structure gives me:

In the code below, I have some elements placed in QtDesigner, and then a couple of empty QFrames, named my_widget_01, and my_widget_02:

I have promoted these to a MyWidget class, which basically just adds a mock-up label in the Python code:

Now, what I would like to do, is to "find" these custom objects - either by name, or by class - as a list; but for some reason I can't. As you can see in the code below, if I run self.findChildren(QtWidgets.QFrame) it finds a bunch of objects, including the custom ones - but if I try self.findChildren(MyWidget), an empty list is returned. Also, if you run self.dumpObjectTree(), there are objects of class MyWidget present in the output - so it is a bit strange for me, why cannot .findChildren find them.

I have so far found this:

How to find an object by name in pyqt?

You can use QObject::findChild method.

So, this post notes, that even if looking up by name (.objectName()), findChild should be used.

access element from .ui

You don't need to use findChild() since if you use loadUi or loadUiType it will map the objects using the objectName.

This refers to the OP problem in that post, so I could not tell if it is possible or not to use findChild() or findChildren() in such a case in principle.

In any case, I do not want to manually keep a list of names [self.my_widget_01, self.my_widget_02], because there may be dynamically added widgets in addition to those present in the .ui - so I'd really, really like to look them up by a name regex (for instance "my_widget_\d\d") - or by class (so I'd look up MyWidget); it does not matter in this case, as I'd keep all MyWidget widgets named as my_widget_XY. I need this so that I could loop over them, regardless of how many they end up being in the GUI.

Is this (getting a list of all promoted MyWidget widgets, regardless if they are present in the .ui file, or added dynamically) possible to do in PyQt5 - and if so, how?

test1.ui:

I'm trying to print a message when instance methods get called, like below. I'm running into this problem, but I'm having trouble solving it in my case because all the solutions seem to require passing in specific arguments which I can't do here.

This is my first python project, decided to go hard with GUI stuff right off the bat. Please forgive me if my terminology is way off, I'm still learning.

I have the class Ui(QtWidgets.QMainWindow) and within that, the method __init__(self). Within that method, I define everything else, like objects, method/function calls, etc. It's worked for me so far according to a tutorial I found detailing how to import and work with the PyQT .ui file directly instead of converting it with pyuic5 every time I make a change to the UI.

However, within one of my methods I set a couple variables, then append text to a Qt Widget with self.plainText.appendPlainText("text goes here") (I think this is called an instance attribute?), create a dir with os.makedirs(), append some more text, then make a call to another method containing a call to subprocess.run(), in that exact order.

Everything within this method gets executed as it should, but not in the order they were written, as the appendPlainText calls get executed after everything else is done executing, even after the call to self.makerars().

Here is mockgui.ui:

I am working on a (fairly basic) feature in a PySide2 application. The application contains a list of checkboxes, and when a checkbox is checked, I need to append the index of the checkbox to a list. My unsuccessful attempt at this can be seen below...