Python Courses, Training, and Tutorials

I am looking for a custom group-by function that is going to group the rows in a way such that: If… Read more Pandas: Custom Group-by Function

I have met a problem for plotting a confusion matrix. The upper and lower lines are put incorrectly… Read more PyTorch Confusion Matrix Plot

This is the python code that causes me problems : # -*- coding: utf-8 -*- class ObjectType2 (obje… Read more Python : Can't Solve AttributeError - Object Has No Attribute Xxx

How to print CatBoost hyperparameters after training a model? In sklearn we can just print model ob… Read more Print CatBoost Hyperparameters

I have a document with many headings and sub-headings. Further into the text I want to link back to… Read more How To Make An Internal Link To A Heading In Sphinx Restructuredtext Without Creating Arbitrary Labels?

I'm attempting to create a program which selects 10 words from a text file which contains 10+ w… Read more Importing Random Words From A File Without Duplicates Python

I've been searching around but couldn't find an easy solution to plot two heatmaps in one g… Read more Python Package To Plot Two Heatmaps In One (split Each Square Into Two Triangles)

Unluckily it is terribly similar to: Filter a numpy array if any list within it contains at least o… Read more Filter Numpy Array If Elements In Subarrays Are Repeated Position-wise In The Other Subarrays

I have a problem importing a module: It is under this directory ./dao and the code that calls it is… Read more Importing Modules From Different Directories

I'd like to use a proxy and feedparser. This is how I'd do in urllib2: import urllib2, feed… Read more How To Use Feedparser With Proxy In Python 3?

I have a function, processing a 1D numpy array, like this: def f(arr): arr=asarray(arr) #pr… Read more Overloading A Float To A Numpy Array

What is pivot? How do I pivot? Is this a pivot? Long format to wide format? I've seen a lot of… Read more How Can I Pivot A Dataframe?

This code runs pretty well and generates the wanted list of prime numbers. But the else block that … Read more Why Does This `else` Block Work Yet It Is Not On The Same Level As The `if` Case?

TL;DR I need to find a real solution to download my data from product datastore and load it to the … Read more Transferring Data From Product Datastore To Local Development Environment Datastore In Google App Engine (Python)