PhotosAPI/modules/exif_reader.py

from exif import Image

def decimal_coords(coords: float, ref: str) -> float:
    """Get latitude/longitude from coord and direction reference

    ### Args:
        * coords (`float`): _description_
        * ref (`str`): _description_

    ### Returns:
        * float: Decimal degrees
    """    
    decimal_degrees = coords[0] + coords[1] / 60 + coords[2] / 3600
    if ref == "S" or ref == "W":
        decimal_degrees = -decimal_degrees
    return round(decimal_degrees, 5)

def extract_location(filepath: str) -> dict:
    """Get location data from image

    ### Args:
        * filepath (`str`): Path to file location

    ### Returns:
        * dict: `{ "lng": float, "lat": float, "alt": float }`
    """    

    output = {
        "lng": 0.0,
        "lat": 0.0,
        "alt": 0.0
    }

    with open(filepath, 'rb') as src:
        img = Image(src)

    if img.has_exif is False:
        return output

    try:
        output["lng"] = decimal_coords(img.gps_longitude, img.gps_longitude_ref)
        output["lat"] = decimal_coords(img.gps_latitude, img.gps_latitude_ref)
        output["alt"] = img.gps_altitude
    except AttributeError:
        pass

    return output