PetPet is a PETSCII editor for Commodore 64 computers. As it is written entirely in Python, it runs on any platform supported by Python (Windows, MacOS, Linux and others).

• fieserWolF/Abyss-Connection - initial work - https://github.com/fieserWolF https://csdb.dk/scener/?id=3623

• Logiker for testing and feature ideas
• Mermaid for the still wonderful PETSCII entitled "Gary"

Use left mouse-button to draw. These are the drawing modes:

Use right mouse-button to select an area. Then, use the usual hotkeys (STRG+X, STRG+C, STRG+V) to cut, copy and paste.

The default palette is PEPTO. You can change the color-palette for previewing on your PC in your own configuration-file. In this JSON file you can edit the "palette" array. See section "PetPet JSON configuration format".

You can change the layout of the available characters in your own configuration-file. In this JSON file you can edit the "layout" array. See section "PetPet JSON configuration format".

Example layouts:

PetPet v1.00 REVISION PARTY 2025 [19.04.2025] *** by fieserWolF
usage: petpet.py [-h] [-p PETSCII_FILENAME] [-c CONFIG_FILENAME] [-f FONT_FILENAME]

This is a PETSCII editor. Press F1 for help in the program.

options:
  -h, --help            show this help message and exit
  -p, --petscii_file PETSCII_FILENAME
						petscii filename (.json)
  -c, --config_file CONFIG_FILENAME
						name of configuration file (.json)
  -f, --font_file FONT_FILENAME
						name of font (2048 bytes)

Example: ./petpet.py -p gfx.json -c config.json -f font.bin

Petpet comes in two flavors:

• standalone executable for 64-bit systems Linux and Windows (see releases)
• Python3 script

Just download your bundle at releases, extract the zip file and enjoy.

Python3 is needed to run PetPet. Everything else needed should be provided in your Python3 installation by default:

• json
• tkinter
• argparse

• Download Python from https://www.python.org.
• Install Python on your computer.

On my Debian GNU/Linux machine I use apt to install everything needed:

apt update
apt install python3 python3-tk

Alternatively, you can use pip to install missing modules:

pip3 install argparse json

• Go to https://github.com/fieserWolF/petpet.
• Click on the green "Code" button and "Download ZIP".
• Extract the downloaded ZIP-file to any folder.

The PETSCII image is natively stored as a json file. There is also a binary import and export.

You can customize this to your own needs in code/action.py in the functions load_petscii_bin() and save_petscii_bin() .

Use this to exchange images with my native C64 tool "Petscii-Editor" ( see https://csdb.dk/release/?id=155723 ).

Any help and support in any form is highly appreciated.

If you have a feature request, a bug report or if you want to offer help, please, contact me:

http://csdb.dk/scener/?id=3623 or wolf@abyss-connection.de

(next release candidate)

• ...

• improved GUI
• mouse wheel in drawing window zooms in and out
• added "open config" menu item
• added layout for dirart "config_dirart.json" (with restricted character-set)
• added "import screen only" and "export screen only"
• added "import petmate" and "export petmate" (petmate9 support)
• added "reverse pen"

• improved undo
• character selection preview in selected color (thanks, Groepaz!)
• image-preview export for PC (PPM format)
• improved documentation
• new mode: inverted writemode
• new mode: 4x4 mode (just draw with your mouse)
• new mode: inverted 4x4 mode
• improved help
• new about infowindow
• various bug-fixes

• improved selection box
• added write-mode
• gui improvements
• export to C64 executable
• improved documentation

released on REVISION PARTY 2025

• initial release

PetPet is a PETSCII editor for Commodore 64 computers.

Copyright (C) 2026 fieserWolF / Abyss-Connection

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

See the LICENSE file for details.

For further questions, please contact me at http://csdb.dk/scener/?id=3623 or wolf@abyss-connection.de

For Python3, Tcl/Tk and other used source licenses see file LICENSE_OTHERS.