Houdini Python SOP

Group_Menu.py

node = hou.pwd()
menu = []
parmvalues = kwargs['parm'].eval().split()

if node.inputs():
    geo = node.inputs()[0].geometry()
    
    typegroups = []
    typegroups.append( geo.primGroups() )
    typegroups.append( geo.pointGroups() )
    typegroups.append( geo.edgeGroups() )
    
    for groups in typegroups:
        sepflag = False
        for group in groups:
            token = group.name()
            label = token
            if token in parmvalues:
                label += ' *'
            menu.extend((token, label))
            if not sepflag: sepflag = True
            
        if sepflag:
            menu.extend(('seperator', ''))
            sepflag = False

    if len(menu) > 0 and menu[-1] == '':
        menu = menu[:-2]
        
return menu