--- title: Install Pynsource - UML tool for Python on Ubuntu using the Snap Store | Snapcraft description: Get the latest version of Pynsource - UML tool for Python for on Ubuntu - Pynsource - reverse engineer Python source code into UML url: https://snapcraft.io/install/pynsource/ubuntu --- [Canonical Snapcraft](https://snapcraft.io/) # Install Pynsource - UML tool for Python on **Ubuntu** # Pynsource - UML tool for Python (pynsource) [Wware Consulting (andybulka)](https://snapcraft.io/publisher/andybulka "View all snaps from Wware Consulting (andybulka)") * [Wware Consulting (andybulka)](https://snapcraft.io/publisher/andybulka "View all snaps from Wware Consulting (andybulka)") * [Development](https://snapcraft.io/search?categories=development) [Install](https://snapcraft.io/install/pynsource/ubuntu#install) [ ](https://res.cloudinary.com/canonical/image/fetch/f_webm/https://dashboard.snapcraft.io/site_media/appmedia/2019/03/2019-03-02_12-15-04-1.gif) #### Pynsource - reverse engineer Python source code into UML Generate UML class diagrams from Python 3 or Python 2 source code. **The only UML tool that recognises Python instance attributes (not just class attributes).** Features include: Layout algorithm, Toggle between UML, Ascii art UML and PlantUML views, Automatically colour sibling subclasses to enhance understanding, Print and Print preview. Add and Edit classes and comment boxes. Windows 10, Mac OSX Mojave, Linux compatibility. Open Source. Pro edition with zoom also available. **Note re snaps under Ubuntu 16.04** Due to a bug in Snapcraft, if you are trying to install the snap on Ubuntu 16.04 the GUI installer will not work and you will have to install from the terminal. ``` sudo snap install pynsource sudo snap install core pynsource ``` ### Package name * pynsource --- ### License * LGPL-3.0+ --- ### Last updated * 21 February 2022 - latest/stable * 17 March 2023 - latest/edge This snap hasn't been updated in a while. It might be unmaintained and have stability or security issues. --- ### Websites * [www.pynsource.com](http://www.pynsource.com "http://www.pynsource.com") --- ### Contact * [abulka@gmail.com](mailto:abulka@gmail.com "mailto:abulka@gmail.com") --- ##### Report a Snap Store violation * [Report this Snap](https://snapcraft.io/install/pynsource/ubuntu#report-snap-modal) --- ## Enable snaps on Ubuntu and install Pynsource - UML tool for Python Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully. Snaps are discoverable and installable from the [Snap Store](https://snapcraft.io/store), an app store with an audience of millions. ### Enable snapd If you’re running [Ubuntu 16.04 LTS (Xenial Xerus)](https://www.ubuntu.com/) or later, including [Ubuntu 18.04 LTS (Bionic Beaver)](https://www.ubuntu.com/desktop/features) and [Ubuntu 20.04 LTS (Focal Fossa)](https://wiki.ubuntu.com/FocalFossa/ReleaseNotes), you don’t need to do anything. Snap is already installed and ready to go. For versions of Ubuntu between [14.04 LTS (Trusty Tahr)](https://wiki.ubuntu.com/TrustyTahr/ReleaseNotes) and [15.10 (Wily Werewolf)](https://wiki.ubuntu.com/WilyWerewolf/ReleaseNotes), as well as Ubuntu flavours that don’t include *snap* by default, *snap* can be installed from the Ubuntu Software Centre by searching for *snapd*. Alternatively, snapd can be installed from the command line: ``` sudo apt update sudo apt install snapd ``` Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly. ### Install Pynsource - UML tool for Python To install Pynsource - UML tool for Python, simply use the following command: ``` sudo snap install pynsource ``` ### Other popular snaps… [See more...](https://snapcraft.io/search?categories=featured) [See more in Featured](https://snapcraft.io/search?categories=featured) ### More things to do… #### [Get the snap store](https://snapcraft.io/snap-store) Browse and find snaps from the convenience of your desktop using the snap store snap. #### [Learn more about snaps](https://snapcraft.io/docs) Interested to find out more about snaps? Want to publish your own application? Visit [snapcraft.io](https://snapcraft.io/) now. [Back to top](https://snapcraft.io/install/pynsource/ubuntu) © 2026 Canonical Ltd. 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