def menuhub_load(file):
    def datetime_to_float(d):
        return d.timestamp()
    pattern = re.compile(r"(\d{4})-(\d{2})-(\d{2}) (\d{2}):(\d{2}):(\d{2}).(\d{3})") #use this to search for timestamp
    with open(file) as hubload_read:
        hublist = [] # list of timestamps
        hubtimes = [] # list of times taken for menu hub to load
        i = 0
        hub_value = True
        while(hub_value):
            line = hubload_read.readline()
            if line is not None:
                if 'generic hook' in line or 'other hook' in line: # hooks
                    match = re.match(pattern, line)
                    hublist.append(match.group()) # appends only the timestamp from the line
                else:
                    hub_value = False

            while i in range(0, len(hublist) -1):
                hubtimes.append(datetime.strptime(hublist[i+1], "%Y-%m-%d %H:%M:%S.%f") - datetime.strptime(hublist[i], "%Y-%m-%d %H:%M:%S.%f")) #subtracts the adjacent timestamps associated with each hook
                i += 2