Step 1: Source the Vitis environment - Step 1: Source the Vitis environment - 2026.1 English - UG1864

For csh/tcsh:

source <Vitis_install_path>/settings64.csh

For bash/zsh:

source <Vitis_install_path>/settings64.sh

This command sets PYTHONPATH to the functional_suite subdirectories containing VFS, varray, and related modules.