Tag: Python

Tutorial: Connect, Install, and Query PostgreSQL in Python

Databases are everywhere — in your phone, on your computer, and behind your beloved applications. But what’s a database worth if you can’t query data from it? In this article, we’ll show you examples of querying any PostgreSQL-based database from your Python code. First, you’ll gain a high-level understanding of PostgreSQL and database connectors. Later […]

Read More

Tutorial: An Introduction to Python Requests Library

The Requests library simplifies making HTTP requests to web servers and working with their responses. In this tutorial, we will learn how to install and use the library and highlight its main features. What is Python Requests Library? The Requests library provides a simple API for interacting with HTTP operations such as GET, POST, etc. […]

Read More

How to Install the Anaconda Distribution on Your Computer

Before jumping into data science, you need to set up the required software and tools and learn how to use them. This tutorial will teach you how to install and use the Anaconda platform for building a data science ecosystem. You’ll also learn Conda to manage packages and environments using the command-line interface. Let’s dive […]

Read More

Grouping Data: A Step-by-Step Tutorial to GroupBy in Pandas

In this tutorial, we will explore how to create a GroupBy object in pandas library of Python and how this object works. We will take a detailed look at each step of a grouping process, what methods can be applied to a GroupBy object, and what information we can extract from it. The 3 Steps […]

Read More

Tutorial: How to Create and Use a Pandas DataFrame

When it comes to exploring data with Python, DataFrames make analyzing and manipulating data for analysis easy. This article will look at some of the ins and outs when it comes to working with DataFrames. Python is a powerful tool when it comes to working with data. Qualities like its scalability and variety of libraries […]

Read More

Tutorial: Demystifying Python Lists

In this tutorial, you’ll learn how to work with Python lists as one of the most powerful data types in Python. After you finish this tutorial, you’ll know the following: How to define Python lists How to create Python lists and access or change items within them How to create a list of lists How […]

Read More

A Complete Guide to Python Virtual Environments

In this tutorial, we’ll learn about Python virtual environments, the benefits of using virtual environments, and how to work inside virtual environments. After you finish this tutorial, you’ll understand the following: What Python virtual environments are The benefits of working in virtual environments How to create, activate, deactivate, and delete virtual environments How to install […]

Read More

Tutorial: How to Write a For Loop in Python

Most tasks we encounter in our everyday lives are repetitive. While these tasks may become boring to humans, computers can handle repetitive tasks quickly and efficiently. We’ll learn how in this tutorial. This tutorial is for Python beginners, but if you’ve never written a line of code before, you may want to complete our free-to-start […]

Read More

Tutorial: Installing Python on Windows

Python is a popular open-source, high-level programming language. It’s intuitive, and it offers many helpful tools and libraries — Python is a powerful data science asset to have in your toolkit. To start working with Python, we first need to download it and install it on our operating system (in this case, Windows). How to […]

Read More

Tutorial: Installing Python on Mac

Python is one of the most powerful programming languages, mostly used in data science, machine learning, and big data analytics. So, installing Python is essential for all programmers. As a novice programmer, you may be wondering how to install or update Python on your Mac properly. Here, we will walk through the different ways of […]

Read More

Learner Spotlight – Viktoria Jorayeva

Meet Viktoria Jorayeva, a Ukrainian student who made the transition from philology to data science in just a few months with Dataquest. As a person from a non-technical, non-mathematical background, breaking into the field of data science was possible thanks to Dataquest’s data science career path. Her story is a true inspiration to learners around […]

Read More

Learner Spotlight: Solange Van Der Kolff

Meet Solange, a software engineer who got into data science because she wanted to contribute to society. She chose Dataquest to help her prepare for a database migration. Here’s her story… 1. First, what are your preferred pronouns? She/her 2. All right, Solange! What’s your current job title? At which company? I am a software […]

Read More

Most Helpful Python Libraries for Data Cleaning in 2021

Most surveys indicate that data scientists and data analysts spend 70-80% of their time cleaning and preparing data for analysis. For many data workers, the cleaning and preparation of data is also their least favorite part of their job, so they spend the other 20-30% of their time complaining about it . . . or […]

Read More

Learner Spotlight: Gino Parages

Meet Gino Parages, a former sales and IT business analyst with no coding skills who decided it was time to learn coding to give his career a boost. He chose Dataquest to help him achieve his learning goals and land the job he wanted. Here’s his story… Q: First, what are your preferred pronouns? A: […]

Read More

How Dataquest Helped an SEO Expert Save Tons of Time

Antoine Eripret, the SEO Lead at Liligo.com, decided to learn Python for SEO because he realized he was wasting time. He got interested in search engine optimization as a student, and entered the industry full-time after getting his Masters in 2016. As he built experience in the field, he says, “I realized that I was […]

Read More