USB String descriptor generator

sd = {
    "stringLanguage"            : 0x0409,
    "stringVendor"              : "STMicroelectronics",
    "stringDeviceDescriptor"    : "ChibiOS/Custom Hardware",
    "stringSerialNumber"        : "2.5.0"
}

def stringDescriptor(descriptor):
    for i in descriptor:
        print "static const uint8_t", i, "[] = {"
        if(type(descriptor[i])==type(1)):
            print "  USB_DESC_BYTE(4)," + \
                "                     /* bLength.                         */"
            print "  USB_DESC_BYTE(USB_DESCRIPTOR_STRING)," \
                + " /* bDescriptorType.                 */"
            print "  USB_DESC_WORD(" + hex(descriptor[i]) + ")" \
                + "                  /* wLANGID (U.S. English).          */"
            print "}\n"
            continue

        num=0
        s = descriptor[i].encode("utf-16")
        s = s[2:]
        print "  USB_DESC_BYTE(" + str(len(s)+2) + ")" \
            + "                    /* bLength.                         */"
        print "  USB_DESC_BYTE(USB_DESCRIPTOR_STRING)," \
            + "/* bDescriptorType.                 */"
        print " ",
        for j in s:
            if(j)=='\x00':
                print "0,",
            else:
                print "'" + j + "'" + ",",
            num+=1
            if(num==16):
                print "\n ",
                num =0
        print "\n}\n"


stringDescriptor(sd)