extract_coord_data.py

import pynmea2

nmea_data = open("data/gps_data_20220215-070028.nmea", "rb")

coordinates_data = []

for message_bytes in nmea_data.readlines():    
    try:
        message = message_bytes.decode("utf-8").replace("\n", "").replace("\r", "")
        parsed_message = pynmea2.parse(message)
    except:
        # skip invalid sentences
        continue

    cga_data = {}
    
    # process only GGA messages
    if parsed_message.sentence_type == "GGA":
        for attr in ["timestamp", "latitude", "longitude", "latitude", "horizontal_dil", "num_sats", "gps_qual"]:
            cga_data[attr] = getattr(parsed_message, attr)
        coordinates_data.append(cga_data)
        
coordinates_data[0]