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Tag: python-3.x

Macro VS Micro VS Weighted VS Samples F1 Score

In sklearn.metrics.f1_score, the f1 score has a parameter called “average”. What does macro, micro, weighted, and samples mean? Please elaborate, because in the documentation, it was not explained properly. Or simply answer the following: Why is “samples” best parameter for multilabel classification? Why is micro best for an imbalanced dataset? what’s the difference between weighted and macro? Answer The question

Python PyQt5 QTreeView set row Background Colour

I am trying to set the background colour (color) for a) a whole QTreeView, and b) for specific rows in a QTreeView within Python. I have found setColor and setBackgroundColor methods, but neither seem to work for me with QTreeView nor QStandardItem. Lots of googling shows many conversations about it, but I have not been able to relate those to

How to remove a keybind after it has done its job

I created a keybind, and want to delete it after it is activated. How do I do this? I have tried this in my code: However, this does not work, as Python displays an error message stating that deletecommand() takes 2 positional arguments but 3 were given, when I only gave two arguments. I also tried root.delete(‘<Key>’, testing), but this

Keybind that binds to every key in tkinter

I am creating an interactive game with Python, and I am trying to make an introduction with the instruction “Press any key to continue.” I am having some difficulty with binding all the keys to a single action. I have tried binding to ‘<Any>’, but it displays an error message. As mentioned before, the ‘<Any>’ keybind results in an error

How to delete a label from tkinter after a countdown

I am trying to create a ten-second countdown that removes itself after it reaches zero. How and where do I put code to remove the label? I have experimented with label.destroy() and label.forget(), but they do not work, creating an error message, most likely because they do not exist. I was hoping for the program to delete the label after

“asyncio.run() cannot be called from a running event loop” when using Jupyter Notebook

I would like to use asyncio to get webpage html. I run the following code in jupyter notebook: However, it returns RuntimeError: asyncio.run() cannot be called from a running event loop What is the problem? How to solve it? Answer The asyncio.run() documentation says: This function cannot be called when another asyncio event loop is running in the same thread.

How to mute/unmute sound using pywin32?

My searches lead me to the Pywin32 which should be able to mute/unmute the sound and detect its state (on Windows 10, using Python 3+). I found a way using an AutoHotkey script, but I’m looking for a pythonic way. More specifically, I’m not interested in playing with the Windows GUI. Pywin32 works using a Windows DLL. so far, I

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