Only getting last record saved...Why

[Milfredo]

I have tried to fix the problem. So looked up the os commands and saw the following used. Problem is I can't get the indentation right no matter where I put it...that line is track_name = line[0] here is the new code.

for f in os.listdir(file_dir): 
        file_name, file_ext = os.path.splitext(f)
        f_name = file_name + file_ext
        file_name = file_name.strip()[3:]
        line_counter = 0
        if file_name == Race_date and file_ext == ".jcp":
            with open(f_name, "r") as csv_file:
                csv_reader = csv.reader(csv_file)
                 
                for line in csv_reader:
                     
                                             
 
                 
                     
                    h = {'track' : line[0],
                    'race_number' : line[2], 
                    'todays_surface' : line[6],
                     
                     
                     
 
                 
                        }
 
           				track_name = line[0]
        path_dir:  str= r"C:\guis\daily_racefiles"      
        filename : str =   (track_name + ".csv")
        path_file = os.sep.join([path_dir, filename])
        with open(path_file, 'a') as csv_file:
            d_writer = csv.DictWriter(csv_file, fieldnames = field)
            d_writer.writerow(h)
                 
    my_labeldone= Label( text ="Downloading Complete", fg= "black", font = ("sans_serif" , 16)).place(x=500, y=500    

I am very frustrated. I have been working on this for 6 hours or so.