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Pyzo

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What Pyzo is

Pyzo is a free, open-source Python IDE for interactive programming, with an editor, shell and programmer tools. It focuses on data-centric work such as learning, science, data analysis and application development. Pyzo uses Python interpreters installed on the system, including Conda environments, so running code requires both the IDE and a Python environment. In the shell, users can run code, a selection or cell, or the current or main file. The editor includes auto-indentation, syntax highlighting, regular-expression find and replace, and debugging breakpoints. Completion can draw on the current session or source, while function call tips and interactive help provide additional guidance. Multiple shells can run simultaneously, including with different Python versions; each runs in a subprocess that can be interrupted or killed. Shell integrations include GUI toolkits and pip or conda package management. Built-in tools include a file browser, source structure view, workspace and logger. Pyzo supports Linux, macOS and Windows.

Who it suits

Pyzo suits people learning Python and those doing science, data analysis or application development who want an interactive IDE. It may also fit users who work with installed interpreters or multiple Python versions.

What it does well

  • Free and open-source.
  • Supports Linux, macOS and Windows.
  • Multiple shells can use different Python versions.
  • Includes debugging breakpoints and interactive help.
  • Supports pip and conda package management.

What to know first

  • A separate Python environment is required to run code.
  • No security or compliance certification details are provided on the listed pages.

Plans

PlanBilled and limitsPrice
PyzoFree and open-source computing environmentFree

As pyzo.org lists them, read 4 Oct 2026. The maker's own page has the final word.

Getting started

  1. Visit the Pyzo website.
  2. Install the Pyzo IDE for Linux, macOS, or Windows.
  3. Install a Python environment, such as one using Conda.
  4. Open Pyzo and use its shell to run code or a file.

Verdict

Pyzo combines an interactive shell with an editor and built-in programming tools, and works with system-installed Python interpreters. Users need to install both Pyzo and a Python environment before running code.

Questions

Is Pyzo free?

Yes. Pyzo is free and open-source; its listed plan is free.

Which operating systems does Pyzo support?

Pyzo supports Linux, macOS, and Windows.

Does Pyzo include a Python environment?

Pyzo works with Python interpreters installed on the system, including Conda environments. The IDE and a Python environment are both needed to run code.

Can Pyzo run more than one Python version?

Yes. Multiple shells can run simultaneously, including shells using different Python versions.

What package managers does Pyzo support?

Its shell supports package management through pip or conda.

Is Pyzo open-source?

Yes. Pyzo is described as free and open-source.

Facts from Pyzo's own pages

Audience
Pyzo focuses on data-centric programming for learning, science, data analysis, and application development. · pyzo.org, 4 Oct 2026
Editor
The editor includes auto-indentation, syntax highlighting, regular-expression find and replace, and debugging breakpoints. · pyzo.org, 4 Oct 2026
Environment requirement
The quickstart says users need to install both the Pyzo IDE and a Python environment to run code. · pyzo.org, 4 Oct 2026
Integrations
The shell supports GUI toolkits including PySide, PyQt4, Tk, wx, fltk, and GTK, and package management through pip or conda. · pyzo.org, 4 Oct 2026
Interactive execution
Users can run code from the shell, run a selection or cell, or execute a current or main file. · pyzo.org, 4 Oct 2026
Interpreter support
The IDE works with Python interpreters installed on the system, including Conda environments. · pyzo.org, 4 Oct 2026
Introspection
Pyzo provides session and source-based completion, function call tips, and interactive help. · pyzo.org, 4 Oct 2026
Linux options
Linux installation options include binaries, Flatpak, native Python and Qt packages, and installation from source. · pyzo.org, 4 Oct 2026
Platforms
The download guide provides Pyzo binaries for Windows, macOS, and Linux. · pyzo.org, 4 Oct 2026
Product
Pyzo is a free, open-source Python IDE aimed at interactivity and simplicity, with an editor, shell, and programmer tools. · pyzo.org, 4 Oct 2026
Security and compliance
The site describes Pyzo as free and open-source and says its code is hosted on GitHub; it provides no security or compliance certification details on these pages. · pyzo.org, 4 Oct 2026
Shells
Multiple shells can run simultaneously, including shells using different Python versions, and shells run in subprocesses that can be interrupted or killed. · pyzo.org, 4 Oct 2026
Tools
Built-in tools include a file browser, source structure view, interactive help, workspace, and logger. · pyzo.org, 4 Oct 2026

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