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Must-Have Tools for Modern Data Scientists: From ML Libraries to Cloud Platforms


Modern data scientists rely on several tools and technologies to perform their tasks efficiently. The tools and applications that are used by data scientists are largely governed by the techniques they use for data analysis. Because these techniques keep changing as data science evolves, no list can be definitive or exhaustive. However, there are some basic tools, techniques, and programming languages that are posed to stay as they form the founding components of data science. Anyone planning for a career in data sciences need to learn these tools

Here’s a list of must-have tools across various categories.

Programming Languages

Python is the programming language that is widely used for data manipulation, analysis, and modelling due to its extensive libraries and ecosystem. A sound knowledge of Python programming is essential for effective data science learning. The significance of Python has received full recognition among professionals as is evident from the popularity this programming language is gaining.  Python programming is included in inclusive data science learning programmes. A  Data Science Course in Hyderabad or Bangalore or any city where the learning is expected to address the requirements of professionals, will include extensive modules on Python programming.

Machine Learning Libraries

Machine learning is an integral part of data sciences. Machine learning principles are used to fully exploit the potential of data science. Data science techniques without drawing from ML technology will be severely inadequate  in managing the huge volume and wide range of data that is proliferating.  ML forms a mandatory module of a Data Science Course although the scope of ML learning might vary depending on the level for which the course in intended.

  • scikit-learn: Essential for classical machine learning tasks like regression, classification, clustering, and so on.
  • TensorFlow / PyTorch: Deep learning frameworks for building and training neural networks.


  • Keras: High-level neural networks API, often used on top of TensorFlow or Theano.

Data Manipulation and Analysis

The common tools used for data manipulation and analysis are:

  • Pandas: For data manipulation and analysis, especially with structured data.
  • NumPy: Fundamental package for scientific computing with Python, providing support for large multi-dimensional arrays and matrices.

Data Visualization

The effectiveness of data visualisation as the means  for interpreting data and identifying its implications is beyond any debate. Visualisation is one approach that greatly simplifies the complexity of data science.  Consequently, visualisation techniques form an integral part of any quality Data Science Course. Some of the tools that are used for this purpose are listed here:

  • Matplotlib: Comprehensive library for creating static, animated, and interactive visualisations in Python.
  • Seaborn: Built on top of Matplotlib, it provides a high-level interface for drawing attractive statistical graphics.
  • Plotly: Interactive plotting library allowing creation of web-based interactive plots.
  • Tableau / Power BI: Business intelligence tools for creating interactive dashboards and visualisations.

Cloud Platforms

As cloud computing has picked up as an alternative to traditional computing, cloud platforms are extensively used in data sciences. Training on cloud computing is a common module in a Data Science Course. Some of cloud computing platforms used in data science are:

  • Amazon Web Services (AWS): Provides a wide range of cloud services including compute power, storage, and data analytics.
  • Google Cloud Platform (GCP): Offers cloud computing services and tools for data storage, analytics, and machine learning.
  • Microsoft Azure: Cloud computing platform offering various services for data storage, processing, and analytics.

Big Data Tools

Working with Big Data is essential in modern data science applications. The popular tools used for this purpose are:

  • Apache Spark: Unified analytics engine for large-scale data processing.
  • Hadoop: Framework for distributed storage and processing of large datasets.
  • Apache Kafka: Distributed streaming platform used for building real-time data pipelines and streaming applications.

Version Control

Version control is essential for tracking changes in data sets and code. Git is the most popular tool used for this:

  • Git: Distributed version control system for tracking changes in source code during software development.

Integrated Development Environments (IDEs)

With data science being applied in complex scenarios, working with integrated development environments is a growing requirement. Tools that are used for this are:

  • Jupyter Notebook / JupyterLab: Interactive computing environment for creating and sharing documents containing live code, equations, visualisations, and narrative text.
  • PyCharm / Visual Studio Code: Popular IDEs for Python development with features like code completion, debugging, and version control integration.


In tech-oriented cities, there is a demand among professionals for domain-specific learning in data science.  Thus, some training centres might offer a Data Science Course in Hyderabad, Bangalore or Chennai that is fine-tuned for a particular industry domain or business segment. The subjects included in such specialised courses depend on the technology or domain for which the course is designed and can include any of the following:

  • Docker: Containerisation platform for packaging, distributing, and running applications.
  • SQL: Proficiency in SQL is essential for querying databases and extracting insights from structured data.
  • Regular Expressions: Useful for pattern matching and text processing tasks.
  • GitHub: Platform for hosting and collaborating on Git repositories, widely used for sharing code and projects in the data science community.


Data science is a fast-evolving technology and its applications are extending to novel areas of the industry ecosystem.  To equip professionals with this dynamic technology, different applications and tools need to be included in a Data Science Course.

The tools related here form the foundation for modern data science workflows, enabling data scientists to efficiently collect, clean, analyse, and interpret data to derive valuable insights and make informed decisions. Excelling in data science requires one to go beyond the basic requirements and keep updating one’s skills.

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