9 of the Best Python Machine Learning Tools

Updated Jan 9, 2025

Introduction


The demand for machine learning experts has increased in recent years, in large part due to the rise in data collection and the need to derive valuable insights from that data. Python’s simplicity, adaptability, and collection of libraries (including TensorFlow, PyTorch, and scikit-learn) have made it the predominant programming language for machine learning methods. However, those new to machine learning may be overwhelmed by the tooling options available. 

Because finding the Python libraries best suited for machine learning can be challenging, we’ve created this guide to help you navigate the top tools available, covering essential libraries for data preprocessing, model training, and deployment.

Why Are the Right Tools Important for Machine Learning?


Not having the right tools for machine learning often means having to manually handle and pre-process large datasets, which can be time-consuming and unreliable. Manual data processing can also introduce delays and possible inaccuracies in training your model. Additionally, without the proper tooling, you may only be able to use simpler models that cannot capture the underlying patterns of your data, since more complex models require specialized libraries for efficient implementation.

As datasets and the size/complexity of models grow, scaling machine learning projects becomes more challenging. Version control and experiment tracking tools enable reproducibility; without them, tracking changes and reproducing results is difficult.

Without good data visualization tools, extracting insights from your data and effectively communicating findings to stakeholders is challenging. Proper tools also help you satisfy data privacy, security, and compliance standards. Ultimately, trying to do machine learning without the appropriate tools can lead to inefficiencies and diminish your ability to scale up your work.

  • Scikit-learn
    Scikit-learn is a Python library explicitly designed for machine learning. It includes tools for model fitting, data preprocessing, model selection, and evaluation.

    A notable feature of scikit-learn is its strong focus on feature engineering, an essential element of machine learning processes (since the quality of a model’s output heavily relies on the quality of its input data). 

    Scikit-learn can manage missing values, address multicollinearity, and transform datasets so they are well-prepared for modeling. It also evaluates the performance of existing models using cross-validation (a method that helps determine the quality of the final model).

    Scikit-learn works efficiently with other widely used Python libraries, such as NumPy and pandas. This allows data scientists to utilize multiple libraries at once. For example, a user can process data with pandas and then apply scikit-learn to train and evaluate a model using that same dataset.
  • PyTorch
    PyTorch is an open-source, deep-learning library that provides a flexible framework for building neural networks. It is particularly well-suited for projects involving natural language processing and computer vision, where the optimal model architecture may need to be tailored to the input data.

    Data scientists and machine learning engineers use PyTorch to define complex neural networks as Python classes, specifying the network structure and data flow. PyTorch then handles the underlying calculations and optimizes the models during training. 

    PyTorch comes with tools and libraries that expand its operations. For example, PyTorch Lightning simplifies the training process, while Torchvision contains resources to tackle different computer vision tasks. Like scikit-learn, PyTorch integrates with other popular Python libraries and frameworks, enabling data scientists to combine multiple tools for model building.
  • Pandas
    Pandas is a foundational Python library that includes data manipulation and analysis capabilities which are particularly valuable for machine learning. pandas handles numerical tables and time series data, making it a critical tool for data scientists and analysts working with Python.

    Pandas is built on top of the DataFrame and Series data structures, which are integrated with NumPy (another Python library for numerical computing). pandas contains functions and methods that enable you to draw meaningful insights from various datasets. 

    Pandas uses syntax that is similar to natural language and has some similarities to Excel in that it allows users to manipulate data using simple commands. This makes pandas a fitting tool for those new to data science and machine learning.
  • Anaconda
    Anaconda is a leading distribution of open-source Python and R libraries, designed for large-scale data processing, predictive analysis, and scientific computing. It offers powerful features and cross-platform compatibility and has become an essential tool for data scientists, machine learning engineers, and AI professionals. Anaconda’s comprehensive set of tools makes it easier to manage dependencies and environments.

    Anaconda is known for its large collection of pre-installed packages. This includes libraries such as NumPy for numerical computing, SciPy for scientific calculations, Matplotlib for data visualization, and pandas for data manipulation. These libraries are available and ready to use as soon as you install Anaconda. This is a big advantage for data scientists who would otherwise have to install each package individually. It’s also an advantage for beginners who want to start experimenting with machine learning in Python as soon as possible.

    Another key feature is Anaconda’s ability to create and manage virtual environments. Virtual environments are important for isolating project-specific dependencies and can be used to separate projects with conflicting requirements. With Anaconda, you can create, export, list, remove, and update environments with different versions of Python and/or packages installed. Switching between environments is also straightforward, making it possible to work on multiple projects with different requirements.

    Furthermore, Anaconda’s cross-platform nature means you can employ the same tools and environments across various operating systems. Whether you are on Windows, macOS, or Linux, Anaconda delivers a consistent experience, facilitating seamless transitions between platforms without compromising functionality. This uniformity is particularly beneficial for teams operating in diverse computing environments and for those who work across multiple machines.
  • XGBoost
    XGBoost is an open-source library that uses a technique called gradient boosting, which is a way to gradually improve the accuracy of a machine learning model. XGBoost combines multiple weak learners (models that work only slightly better than a series of random guesses) sequentially to improve the performance of a subsequent model. Through this process, XGBoost creates competent predictive models.

    XGBoost is effective in working with big datasets. It performs regularization techniques (methods for improving the generalization of a machine learning model), making it adept at working with new, unseen data in addition to the data on which it was trained. It is also highly scalable, so it suits projects of various sizes. Its optimized algorithms and parallel processing enable fast and effective data processing. This allows data scientists to train models faster.

    XGBoost accepts multiple input formats and integrates well with popular Python libraries like pandas and scikit-learn.
  • Keras
    Keras is a high-level API for neural networks, written in Python. It was created to enable fast experimentation.

    Keras supports several neural network models, including convolutional networks for image processing and recurrent networks for sequential data. It lets users define multi-input and multi-output models, making it suitable for many types of applications, including those built for image and text classification, language generation, and more.

    Keras is also known for its compatibility with different backend systems. It can run on top of TensorFlow, Theano, and other computational engines, allowing users to choose the backend that best suits their needs.
  • Jupyter Notebook
    Jupyter Notebook is an open-source web application for building documents that can accommodate code, equations, visualizations, and regular text. It’s popular among data scientists and machine learning professionals because it provides flexibility and an intuitive interface for building and testing machine learning models.

    One notable feature of Jupyter Notebook is its support for many programming languages. Python is the language most often used, but Jupyter Notebook also works with R, Julia, Scala, and more. This makes it useful for Python machine learning and data science as well as scientific computing and statistics. You can use it to execute code in real time and see your results immediately, which creates an effective approach to drilling into data.

    Jupyter Notebooks are built using Markdown, which makes it a breeze to mix code with regular text (think headings, lists, images, the whole nine yards) and share insights and documents with others. In fact, a primary reason that Jupyter is so popular in the data science field is that it makes collaboration more accessible.

    Jupyter Notebook also works seamlessly with the Anaconda platform.
  • TensorFlow
    TensorFlow was developed by Google and is a popular Python library for machine learning. It includes a set of useful tools for building and training neural networks. TensorFlow can create various machine learning models, including Convolutional Neural Networks (CNNs), Recurrent Neural Networks (RNNs), and Deep Neural Networks (DNNs). This versatility makes TensorFlow suitable for addressing many different machine learning challenges.

    Like other popular Python libraries, TensorFlow has a large and active user community. Members regularly share helpful tutorials and documentation and maintain forums where users can collaborate and share expertise. This kind of community support is beneficial to both machine learning beginners and experienced professionals.

    TensorFlow is compatible with Windows, Mac, and Linux platforms, enabling data scientists to work in their preferred environment without restrictions. It’s equally useful for developing models locally or deploying them on large-scale cloud infrastructures. TensorFlow also integrates with other popular Python machine learning libraries.
  • Natural Language Toolkit (NLTK)
    The Natural Language Toolkit (NLTK) is a platform used for creating Python applications that work with human language. It includes tools for text processing, wrappers for NLP libraries, and an active user discussion forum.

    NLTK includes various tools for NLP tasks, including tokenization, stemming, tagging, parsing, and semantic reasoning. Tokenization is the process of breaking up a large piece of text into smaller units, such as words or sentences. Stemming and lemmatization are processes that reduce words to their root form, which can help with text analysis. Tagging is the process of labeling words with their part of speech (noun, verb, or adjective). Parsing is the process of breaking down a sentence by identifying its grammatical structure. These tools make NLTK useful for sentiment analysis, machine translation, and spam detection.

    NLTK is open source, so it benefits from the support of a large community of contributors who update and maintain it. Resources for learning about NLTK include user forums, code samples, and tutorials. NLTK integrates easily with other machine learning libraries in Python. For projects ranging from simple text classification to advanced machine translation systems, NLTK delivers the functionality to process and analyze text data effectively.

    NLTK’s support for natural language processing is highly beneficial for data scientists who use NLP in their machine learning projects.

Level Up Your Machine Learning Projects 

The demands of machine learning make it imperative for data scientists to keep pace with the latest tools in the field, and to investigate newly emerging ones. The libraries and frameworks popular in machine learning provide powerful support for tackling the complexity and numbers inherent in data science work. 

Anaconda is a versatile solution for mastering machine learning tasks. Want to see Anaconda in action? Request a demo to learn more about how our platform can enhance your machine learning initiatives.