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Pyzo
What it is
Pyzo is a free, open-source Python IDE centered on interactive and simple programming. It provides an editor, shell and programmer tools for learning, science, data analysis and application development. The IDE uses Python interpreters installed on the computer, including Conda environments, so both Pyzo and a Python environment are required. Code can run from the shell, as a selection or cell, or as the current or main file. Editor features include auto-indentation, syntax highlighting, regular-expression search and replacement, and debugging breakpoints. Session- and source-based completion, function call tips and interactive help assist coding. Multiple shells can run simultaneously, including shells tied to different Python versions; each runs in a subprocess that can be interrupted or killed. The shell supports PySide, PyQt4, Tk, wx, fltk and GTK, plus pip or conda package management. Built-in tools include a file browser, source structure view, workspace and logger. Pyzo runs on Linux, macOS and Windows, with several Linux installation options.
For and against
For
- Free and open-source IDE
- Supports Conda environments
- Runs multiple interruptible shells
- Includes integrated debugging breakpoints
- Available on Linux, macOS and Windows
Against
- Requires a separate Python environment
- No security certifications are listed
- No free trial is offered
The verdict
Pyzo combines interactive execution, editor assistance, multiple shells and data-focused tools without a purchase price. Remember to install both the IDE and a Python environment before running code.
Who it suits
Pyzo suits learners, scientists, analysts and developers who prefer interactive Python work. It is also useful for users managing multiple local Python environments.
Plans and prices
Pyzo
Free and open-source computing environment
Read 4 Oct 2026 · pyzo.org
On the record
- Audience
- Pyzo focuses on data-centric programming for learning, science, data analysis, and application development.pyzo.org · read 4 Oct 2026
- Editor
- The editor includes auto-indentation, syntax highlighting, regular-expression find and replace, and debugging breakpoints.pyzo.org · read 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 · read 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 · read 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 · read 4 Oct 2026
- Interpreter support
- The IDE works with Python interpreters installed on the system, including Conda environments.pyzo.org · read 4 Oct 2026
- Introspection
- Pyzo provides session and source-based completion, function call tips, and interactive help.pyzo.org · read 4 Oct 2026
- Linux options
- Linux installation options include binaries, Flatpak, native Python and Qt packages, and installation from source.pyzo.org · read 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 · read 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 · read 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 · read 4 Oct 2026
- Tools
- Built-in tools include a file browser, source structure view, interactive help, workspace, and logger.pyzo.org · read 4 Oct 2026
