def pprintInterface(intf, prefix="", indent=0, file=sys.stdout):
    """
    Pretty print interface
    """
    try:
        s = intf._sig
    except AttributeError:
        s = ""
    if s is not "":
        s = " " + repr(s)

    file.write("".join([getIndent(indent), prefix, repr(intf._getFullName()),
                        s]))
    file.write("\n")
    
    if isinstance(intf, HObjList):
        for i, p in enumerate(intf):
            # interfaces have already name of this array and index in it's name
            pprintInterface(p, prefix=prefix, indent=indent + 1, file=file)
    else:
        for i in intf._interfaces:
            pprintInterface(i, indent=indent + 1, file=file)
Pretty print interface