Prerequisites for python3

QtPyVCP can be installed and run on most reasonably modern PCs and operating systems. There are a few requirements that need to be satisfied, however, and it’s best to verify that the system is indeed capable of running QtPyVCP before installing.

These requirements are the same regardless of the install method.

System Requirements

  • Debian 11 (bullseye) or 12 (bookworm) 64 bit ( Debian 10 latest Qt is 5.11 )

  • Python 3.7

  • Qt 5.12 or more recent

  • LinuxCNC 2.9 branch master, installed as a Run In Place (RIP) built from source, debian buster buildbot packages or debian bookworm packages

  • Graphics card that supports OpenGL 1.50 or later (for VTK backplot)


QtPyVCP requires a x86_64 operating systems, x86_32 systems are not compatible unless you build VTK with QT support from sources.

There are VTK builds for Raspberry pi 4 32 bits.

LinuxCNC 2.9 packages available here:


Debian 10 buster binaries work on Debian 11 bullseye

Also available from Debian 12 (bookworm) apt repository

Software Dependencies

These packages should be installed prior to attempting to install QtPyVCP.

sudo apt install python3-pyqt5 python3-dbus.mainloop.pyqt5 python3-pyqt5.qtopengl python3-pyqt5.qsci python3-pyqt5.qtmultimedia \
python3-pyqt5.qtquick qml-module-qtquick-controls gstreamer1.0-plugins-bad libqt5multimedia5-plugins pyqt5-dev-tools python3-dev \
python3-setuptools python3-wheel python3-pip python3-six python3-docopt python3-qtpy python3-pyudev python3-psutil python3-markupsafe \
python3-opengl python3-vtk9 python3-pyqtgraph python3-simpleeval python3-jinja2 python3-deepdiff python3-sqlalchemy git python3-distro \