Copyright 2025-2026 Sebastiaan Mathôt
Sigmund Analyst is a powerful code editor (also: Integrated Development Environment or IDE) focused on AI-assisted data analysis with Python. It is composed of a set of powerful PyQt/ PySide widgets that can also be used in other applications.
Features:
- AI integration SigmundAI and Mistral Codestral
- Syntax highlighting
- Code completion
- Code checking
- Project explorer
- Jupyter (IPython) console
- Workspace explorer
- Editor panel with splittable tabs
- Settings panel
You can code together with SigmundAI. This works similarly to (and is an alternative to) apps such as Claude Code, Codex, and Mistral Vibe. To activate SigmundAI integration, simply log into https://sigmundai.eu (subscription required). Sigmund Analyst will then automatically connect to SigmundAI when you enable the Sigmund panel in the toolbar.
As-you-type code suggestions are provided by Mistral Codestral. To activate Mistral integration, you need to create an account with Mistral AI. Currently, a free Codestral API key is then provided through the Mistral console. Copy-paste this API key to Codestral API Key field in the settings panel of Sigmund Analyst.
The easiest way to install Sigmund Analys on Windows is to install OpenSesame, which include Sigmund Analyst:
The easiest way to install Sigmund Analyst on Linux is to download and run the installer script. This will create a Virtual Environment, pip install Sigmund Analyst and all dependencies into this environment, and add a Desktop file to your system to easily start Sigmund Analyst. To upgrade, simply run the script again. (This is actually the OpenSesame installation script, which is bundled with Sigmund Analyst.)
Currently, the Linux installer is tested on Ubuntu 26.04.
bash <(curl -L https://github.com/open-cogsci/OpenSesame/raw/refs/heads/4.1/linux-installer.sh) --install
Install with:
pip install pyqt_code_editor
Start Sigmund Analyst with:
sigmund-analyst
PyQt Code Editor is licensed under the GNU General Public License
v3.