Calculation of 
Total time
Download time
Verification time
Repair time
Unpack time
was broken for python3. Everything except hours

def format_time_sec_orig(sec):
    Hour = sec / 3600
    Min = (sec - (sec / 3600) * 3600) / 60
    Sec = (sec - (sec / 3600) * 3600) % 60
    return '%d:%02d:%02d' % (Hour, Min, Sec)

def format_time_sec_new(sec):
    Hour = sec / 3600
    Min = (sec % 3600) / 60
    Sec = (sec % 60)
    return '%d:%02d:%02d' % (Hour, Min, Sec)

print("Orig: " + format_time_sec_orig(int(7199)))
print("New: " + format_time_sec_new(int(7199)))


Output:

1:00:00
1:59:59

Process finished with exit code 0