Journey into Data Science with Python | CodeSignal Learn

Skip to main content

intermediate

Journey into Data Science with Python

Data Science & Analytics

7 courses

217 practices

28 hours

Welcome to this learning path crafted to transform you from a curious enthusiast to a proficient data scientist. This path includes courses that equip you with the foundational knowledge, tools, and techniques to extract actionable insights from raw data using Python. Ready to start? Let's dive in!

Trusted by learners working at top companies

Turn screen time into skills time

Practice anytime, anywhere with our mobile app.

Sign up

Join the 1M+ learners on CodeSignal

Be a part of our community of 1M+ users who develop and demonstrate their skills on CodeSignal

4.55

(1,642)

20,968 learners

Earn a shareable

Certificate of Achievement

Verified skills you'll gain

DEVELOPING

Data Cleaning and Preprocessing

ADVANCED

Data Querying and Retrieval

INTERMEDIATE

Exploratory Data Analysis and Visualization

INTERMEDIATE

Machine Learning and Predictive Modeling

Tools you'll use

Numpy

Pandas

Python

Scikit-learn

Seaborn

Course 1

Basics of Numpy and Pandas with Titanic Dataset

5 lessons

22 practices

This entry-level course offers a deep dive into the fundamental functionalities of Python libraries, Numpy and Pandas, applicable to data science. It covers a wide range of topics, from numerical computations to data manipulation using authentic datasets.

Course 2

Intro to Data Visualization with Titanic

9 lessons

53 practices

An in-depth advanced course dedicated to mastering data visualization techniques using Python, Matplotlib, and Seaborn. You will get to work with a real-world Titanic dataset and explore critical aspects of data representation and interpretation.

Course 3

Intro to Time Series Analysis with Airline Data

5 lessons

26 practices

This data-heavy course focuses on trends and patterns in air travel history. Using complex visualizations and time series analysis, you will learn about growth trajectories and seasonal fluctuations in the air travel sector.

Course 4

Intro to Data Cleaning and Preprocessing with Titanic

6 lessons

30 practices

This comprehensive course specializes in data cleaning and preprocessing techniques in Python, preparing you to apply these techniques in predictive modeling. The course covers a range of relevant topics, from missing data handling to feature engineering.

Course 5

Deep Dive into Numpy and Pandas with Housing Data

5 lessons

21 practices

Intended for those interested in Machine Learning, this advanced course delves deeper into the extensive functionalities of Numpy and Pandas. The course covers complex operations, large-scale data manipulation, and cross-disciplinary applications.

Course 6

Introduction to Supervised Machine Learning

6 lessons

28 practices

An overview course into supervised machine learning techniques, focusing particularly on linear and logistic regression. By working with real-world datasets, you will implement both models to predict outputs and analyze the most predictive features.

Course 7

Intro to Unsupervised Machine Learning

8 lessons

37 practices

This advanced course explores unsupervised machine learning, emphasizing dimensionality reduction and clustering methods. Using the Iris dataset, you will apply different methods and interpret the practical implications of the clusters identified.

Scan to download

Other paths you may like

Fundamental Coding Interview Prep with Python

Introduction to Programming with Python

Mastering Algorithms and Data Structures in Python

Advanced Coding Interview Preparation with Python

Full-Stack Engineering with JavaScript

Prompt Engineering for Everyone

Journey into Data Science with Python

Java Programming for Beginners

Company

About Careers Leadership Talent Science Newsroom

Collections

Generative AI Business & Leadership Interview Prep AI & Machine Learning Learn to Code Data Science & Engineering

Platform

Platform Overview Skills Assessments Live Tech Interviews AI Interviewer AI Role-Play AI Tutoring with Cosmo

Roles

Talent Acquisition Engineering Leaders Sales Leaders CS & Support Leaders IO Psychologists Individuals

Resources

Resource Library Blog Customer Stories Interview Prep API Docs

Support

Copyright © 2026 CodeSignal

Privacy Terms Compliance & Trust

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

+9

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

+8

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

name

Francisco Aguilar Meléndez

Data Scientist

+11