Record Time

from time import time

save_path = '/storage/sdcard0/a.txt'

def get_time (seconds):
    if seconds > 0:
        if seconds <= 60:
            return str (seconds) + " seconds"
        elif seconds > 60 and seconds < 3600:
            return str ((seconds) / 60) + " minutes"
        elif seconds > 3600 and seconds < 86400:
            return str ((seconds) / 3600) + " hours"
        elif seconds > 86400:
            return str ((seconds) / 86400) + " days"
        else:
            raise ValueError ("Bad Number")

lasttime = 0.0

with open (save_path, mode = 'a', encoding = 'utf-8') as checkfile:
    #Create file if it doesnt already exist
    checkfile.write ("")

with open (save_path, mode = 'r+', encoding = 'utf-8') as readfile:
    #Read old time
    temp = readfile.read ()
    if temp:
        lasttime = temp
    else:
        print ("Save file is empty")

lasttime = float (lasttime)

print ("Its been", get_time (time () - lasttime))

saveq = input ("Overwrite time? (y / n)\n")
if saveq.lower () == 'y':
    with open (save_path, mode = 'w+', encoding = 'utf-8') as writefile:
        #Save new time if the user wants
        writefile.write (str (time ()))
        print ("Saved", end = ", ")

print ("Goodbye")