easy parser to get data

parser.py

import dateutil.parser
from datetime import timedelta

f = open("xml2csv.csv")
data = f.readlines()
time_data = []
value_data = []
speed_data = []
for line in data:
    if(line[0:4]=="Time"):
        time = line.split(",")[1].strip()
        try:
            time = dateutil.parser.parse(time)
            time_data.append(time)
        except:
            pass
    elif(line[0:14]=="AltitudeMeters"):
        altitude = float(line.split(",")[1])
    elif(line[0:5]=="Value"):
        value = int(line.split(",")[1])
        value_data.append(value)
    elif(line[0:5]=="Speed"):
        speed = float(line.split(",")[1])
        speed_data.append(speed)
        print(str(time+ timedelta(hours=8))+","+str(value)+","+str(speed)+","+str(altitude))
f.close()