docs: def link_pyqt(sys_python, venv_python):
      """Symlink the systemwide PyQt/sip into the venv."""
      real_site = site_dir(sys_python)
      venv_site = site_dir(venv_python)
  
      for f in ['sip.so', 'PyQt5']:
          (venv_site/f).symlink_to(real_site/f)