Top 9 Python Libraries for Data Engineers

Deepsandhya Shukla 31 May, 2024 • 3 min read


Python is the favorite language for most data engineers due to its adaptability and abundance of libraries for various tasks such as manipulation, machine learning, and data visualization. This post looks at the top 9 Python libraries necessary for data engineers to have successful careers. We will look at each library’s unique features and how they may significantly help your data engineering projects—from using Scikit-learn to become an expert in machine learning to utilizing Pandas to make data manipulation easier.

Top 9 Python Libraries for Data Engineers

List of Top 9 Python Libraries for Data Engineers

Let us now look at the top Python Libraries for Data Engineers.


Pandas is a robust package that offers functions and data structures for effectively working with big datasets. Its simple data structures, such as DataFrames, make it easy to clean, filter, and manipulate data. With just a few lines of code, you can quickly combine several datasets or filter rows depending on particular criteria. Pandas is particularly useful for data engineers in data cleaning and preprocessing tasks.


Prefect is designed to address some limitations of traditional workflow tools like Airflow. It offers an intuitive way to build and manage data workflows. Prefect offers capabilities like scheduling, error handling, and retries to make the orchestration of data pipelines easier. It simplifies data extraction, transformation, and loading and fits with contemporary data stacks. Data engineers prefer Prefect due to its simplicity and capacity to manage intricate operations with little setup.


PyArrow is a crucial library for data engineers working with large datasets. Developed by the creators of Pandas, it addresses scalability issues. PyArrow’s columnar memory format improves compatibility and speed. It effortlessly combines with other Python libraries, such as NumPy and Pandas. Data engineers use PyArrow for efficient data serialization, transport, and manipulation. It can handle large, unified datasets, making big data processing tasks invaluable.


Kafka-Python is a great Python library for interacting with the distributed messaging system Apache Kafka in Python. It facilitates real-time data streaming by offering APIs to create and receive Kafka messages. Kafka-Python supports asynchronous processing, which enhances performance. Data engineers use it to build robust data pipelines and streaming applications. Its high availability and durability ensure reliable data processing and messaging across systems.


Apache-Airflow is a powerful scheduler for managing and orchestrating workflows. It allows you to define workflows as directed acyclic graphs (DAGs) of tasks. Each task can run independently, ensuring efficient execution. The library provides a user-friendly UI and API for monitoring and managing workflows. Data engineers use Apache-Airflow to automate complex data pipelines and handle dependencies seamlessly. Its failure handling and error recovery capabilities are robust, making it a vital tool for ensuring smooth data operations.


The Python API for Apache Spark, a quick and versatile cluster computing system, is called PySpark. Because it provides high-level Python APIs, data engineers may quickly process large-scale data sets. PySpark facilitates effectively executing distributed data processing tasks on large datasets, including data transformation, purification, and analysis. It is an excellent tool for data engineers with distributed computing and large data sets. 


SQLAlchemy is a well-liked Python SQL toolkit and Object-Relational Mapping (ORM) module that simplifies database interfaces. It offers a high-level interface for interacting with relational databases, simplifying data addition, deletion, updating, and searching. With SQLAlchemy, data engineers can quickly deal with databases without writing complex SQL queries. SQLAlchemy simplifies database management and query execution for data engineers.


Requests is a straightforward yet effective Python library for submitting HTTP requests. With its help, data engineers can easily send and receive HTTP requests and responses from web servers. Requests makes handling HTTP communication in your Python programs simple, whether you need to scrape web pages or get data from APIs. It is helpful for data engineers in web scraping and API data retrieval tasks.

Beautiful Soup

This Python package, Beautiful Soup, extracts data from XML and HTML documents. It makes web scraping activities easy and efficient by offering tools for parsing and traversing the parse tree. Beautiful Soup is a valuable tool for data engineers who want to extract particular information from web pages and find items based on tags, characteristics, or text content. It is beneficial for data engineers who are scraping and extracting data from HTML material.


Python libraries are essential to data engineers’ workflows because they offer the tools and features to handle data efficiently. By becoming proficient with the top 10 Python libraries discussed in this article, data engineers may expedite their data processing, analysis, visualization, and machine learning jobs to yield valuable insights and solutions. To keep ahead of the curve in data engineering, ensure you investigate and utilize these libraries in your projects.

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