Tutorial

Python Collections module: Practical Use-Cases

Did you know that Python has a built-in module for collections of data? Let's take a look at examples of its classes: Counter, DefaultDict, Deque and NamedTuple.

Mar 1, 2024 8 minutes read

Tutorial

PEP8 in Python: Main Rules You Need To Know

Every programming language has its own guidelines and best practices. The official style guide in Python is defined in PEP 8. In this tutorial, I will list the most common and practical rules from it.

Feb 28, 2024 6 minutes read

Course

Python Chatbot: Ask Database of Cars with OpenAI GPT

We'll build a chatbot JS widget that would call the Python API for transforming the human question into an SQL query and getting back the results in human language, with the help of OpenAI API and GPT-4.

Feb 21, 2024 52 minutes read

Tutorial

Pandas DataFrame Query Method: 11 Syntax Options

While using Pandas in Python, it's common to filter data with `df.query()`. But there are so many options of the syntax and parameters!

Feb 20, 2024 9 minutes read

Tutorial

Pandas DataFrames: Search and Fill/Drop Empty Values

When working on Pandas DataFrame, it is common to find empty columns or even rows. This tutorial will show you how to search for them and process them by deleting or replacing them with new values.

Feb 13, 2024 7 minutes read

Tutorial

Python Excel: Real Upwork Project to Group Data of Players

In this tutorial, we will perform Excel data transformation with Python, based on the actual job from Upwork, which would earn $150.

Jan 27, 2024 9 minutes read

Tutorial

Calculate Cost of OpenAI API Calls from Python

When working with OpenAI and GPT models, it's crucial to calculate the costs. In this tutorial, I will show you how to check the costs of the API calls, both humanly and automatically, with Python and LangChain.

Jan 19, 2024 4 minutes read

Tutorial

Publish ML Model as API or Web Page: Flask and Digital Ocean

After building and training your Machine Learning model, the next step is to publish it as an API or a web page for others to make predictions.

Jan 13, 2024 5 minutes read

Tutorial

Python OCR: Invoice Data from PDF/Image - 4 Libraries Tested

One of the most typical Machine Learning tasks is reading structured text from images with OCR. We experimented with 5 sample invoices and a few Python libraries.

Jan 11, 2024 20 minutes read

Course

Your First Python Chatbot with GPT-3.5 and LangChain

Customer support chatbot: get the answers based on your FAQ documents.

Jan 9, 2024 23 minutes read

Tutorial

Pandas: 8 Most Useful Functions for Data Overview

In this tutorial, I will show you the most often-used functions from Pandas to get a general overview of the data.

Jan 1, 2024 3 minutes read

Course

Classification in Python with Random Forest Algorithm

Three real-life practical projects, with the Random Forest algorithm explained.

Dec 14, 2023 32 minutes read

Tutorial

Python: Split Large CSV File into Smaller Ones (tasks from Upwork)

I recently saw a few jobs on Upwork that involve splitting large CSV files into smaller ones. So, I decided to write this tutorial and show how to do it in Python.

Dec 9, 2023 2 minutes read

Tutorial

Pandas describe() Explained: Mean, Std, Percentiles

Python `pandas` library has a great method `df.describe()`, to show some numbers about the dataframe, but do you understand the meaning behind all of them?

Dec 9, 2023 3 minutes read

Tutorial

Jupyter Notebook vs PyCharm: Benefits for Data Science and ML Projects

If you watch any video tutorials about Machine Learning and Python, you will see that most developers use Jupyter Notebook for ML projects, not IDE like PyCharm. Why? What are the benefits?

Dec 9, 2023 3 minutes read