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--- public:watches:watchcheck [04/05/22 10:32 BST] – gm4slv
+++ public:watches:watchcheck [Unknown date] (current) – removed - external edit (Unknown date) 127.0.0.1
@@ Line 1: / Line 1: @@
-====== Watchcheck Python code ======
-I wrote a small python2 application to keep track of a watch/clock's
-daily rate error. It's a console-only mimic of an Android app that
-I use on my phone to track my watch timekeeping.
-I wrote it mainly as a //thought-experiment// rather than as a fully functional
-piece of code.
-You put the application in a directory specific to the watch and execute it from that
-directory. the data from each measurement is stored in a **json** file in the same directory.
-<file python watchcheck.py>
-#! /usr/bin/env python
-## a text-terminal version of the WatchCheck app
-## to track error, daily error rate of timepieces.
-# auto update?
-#
-import time
-import datetime
-import json
-def write_file(text):
-    filename = "logfile.txt"
-    f = open(filename, 'a+')
-    timenow = time.strftime("%d/%m/%Y %H:%M:%S", time.gmtime(time.time()))
-    log = " ".join((timenow, text, "\r\n"))
-    f.write(log)
-    f.close()
-def get_delta():
-    print time.strftime("Current Time = %H:%M")
-    h = time.strftime("%H")
-    w = raw_input("Watch time %s:" % (h))
-    print w
-    date = time.strftime("%Y/%m/%d")
-    s = date + " " + h +":"+ w +":00"
-    raw_input("Press enter when seconds = 0 ")
-    watchtime = time.mktime(datetime.datetime.strptime(s, "%Y/%m/%d %H:%M:%S").timetuple())
-    record_time = time.strftime("%Y/%m/%d %H:%M:%S")
-    timenow = time.time()
-    delta = watchtime - timenow
-    return record_time,delta
-def watch_stat():
-    try:
-        saved_error = open('error_list.json')
-        error_list = json.load(saved_error)
-    except:
-        error_list = []
-    if len(error_list) > 1:
-        first_record = error_list[0]
-        latest_record = error_list[-1]
-        previous_record = error_list[-2]
-        first_time = first_record[0]
-        first_delta = first_record[1]
-        latest_time = latest_record[0]
-        latest_delta = latest_record[1]
-        previous_time = previous_record[0]
-        previous_delta = previous_record[1]
-        FMT = '%Y/%m/%d %H:%M:%S'
-        t_latest = datetime.datetime.strptime(latest_time, FMT)
-        t_previous = datetime.datetime.strptime(previous_time, FMT)
-        t_first = datetime.datetime.strptime(first_time, FMT)
-        tdelta = t_latest - t_previous
-        full_delta = t_latest - t_first
-        elapsed_time = tdelta.total_seconds()
-        full_time = full_delta.total_seconds()
-        print "First record time ", first_time
-        print "First record delta ", first_delta
-        print ""
-        print "Previous record time ", previous_time
-        print "Previous record delta ", previous_delta
-        print ""
-        print "Latest record time " , latest_time
-        print "Latest record delta ", latest_delta
-        print ""
-        print "Overall elapsed time ", full_delta
-        print "Latest elapsed time ", tdelta
-        print ""
-        # Current Error rate
-        time_error = latest_delta - previous_delta
-        error_rate = time_error / elapsed_time
-        daily_rate = error_rate * (60*60*24)
-        ppm_daily = error_rate * 1000000
-        # Overall Error rate
-        total_error = latest_delta - first_delta
-        average_error_rate = total_error / full_time
-        average_rate = average_error_rate * (60*60*24)
-        ppm_overall = average_error_rate * 1000000
-        print "Latest delta change ", time_error
-        print "Latest elapsed time %d seconds " % (elapsed_time)
-        print ""
-        print "Daily PPM : %0.3f" % ppm_daily
-        print "Daily rate error: %0.1f s/d " % (daily_rate)
-        print ""
-        print "Total Time %d seconds" % (full_time)
-        print "Total error ", total_error
-        print "Total PPM : %0.3f" % ppm_overall
-        print "Total rate error: %0.1f s/d" % (average_rate)
-        print ""
-        print "========================================================"
-        print " Delta : %+0.1f s | Rate : %+0.1f s/d | Average : %+0.1f s/d" % (latest_delta, daily_rate, average_rate)
-        print "========================================================"
-        print ""
-        text = "\t%+0.1f\t\t%+0.1f\t\t%+0.1f" % (latest_delta, daily_rate, average_rate)
-        write_file(text)
-    else:
-        print "No rate yet"
-def new_record():
-    try:
-        saved_error = open('error_list.json')
-        error_list = json.load(saved_error)
-    except:
-        error_list = []
-    s,delta = get_delta()
-    print ""
-    print "%s \n\nDelta %0.1f seconds" % (s, delta)
-    last_data=[s,delta]
-    error_list.append(last_data)
-    #print error_list
-    with open('error_list.json', 'wb') as outfile:
-        json.dump(error_list, outfile)
-    return
-def delete_last():
-    try:
-        saved_error = open('error_list.json')
-        error_list = json.load(saved_error)
-    except:
-        error_list = []
-    error_list.pop()
-    with open('error_list.json', 'wb') as outfile:
-        json.dump(error_list, outfile)
-    return
-def menu():
-    print "Wire2waves WatchCheck....."
-    print "=========================\n"
-    print "N : New Record\nD : Delete Last\nS : Stats\nQ : Quit\n"
-    choice = raw_input("Command > : ").upper()
-    if choice == "N":
-        print "New"
-        new_record()
-        watch_stat()
-        menu()
-    elif choice == "S":
-        print "Stat"
-        watch_stat()
-        menu()
-    elif choice == "D":
-        delete_last()
-        watch_stat()
-        menu()
-    elif choice == "Q":
-        return
-    else:
-        print "?"
-        menu()
-menu()
-</file>
-Running it for the first time, with no previous records stored, looks like this:
-<code>
-Wire2waves WatchCheck.....
-=========================
-N : New Record
-D : Delete Last
-S : Stats
-Q : Quit
-Command > : n
-New
-Current Time = 10:18
-Watch time 10:19
-Press enter when seconds = 0
-/05/04 10:19:30
-Delta -30.2 seconds
-</code>
-and the first time-delta is stored in the ''error_list.json'' file like this:
-<code>
-[["2022/05/04 10:19:30", -30.179980039596558]]
-</code>
-Running it again, after only 10 minutes looks like this:
-<code>
-Command > : n
-New
-Current Time = 10:30
-Watch time 10:30
-Press enter when seconds = 0
-/05/04 10:30:30
-Delta -30.2 seconds
-First record time  2022/05/04 10:19:30
-First record delta  -30.1799800396
-Previous record time  2022/05/04 10:19:30
-Previous record delta  -30.1799800396
-Latest record time  2022/05/04 10:30:30
-Latest record delta  -30.1998269558
-Overall elapsed time  0:11:00
-Latest elapsed time  0:11:00
-Latest delta change  -0.0198469161987
-Latest elapsed time 660 seconds
-Daily PPM : -30.071
-Daily rate error: -2.6 s/d
-Total Time 660 seconds
-Total error  -0.0198469161987
-Total PPM : -30.071
-Total rate error: -2.6 s/d
-========================================================
- Delta : -30.2 s | Rate : -2.6 s/d | Average : -2.6 s/d
-========================================================
-</code>
-There's also a small utility called ''watchstat.py'' that reads the ''error_list.json'' file to calculate and
-display the data
-<file python watchstat.py>
-#! /usr/bin/env python
-## a text-terminal version of the WatchCheck app
-## to track error, daily error rate of timepieces.
-#
-import time
-import datetime
-import json
-def watch_stat():
-    try:
-        saved_error = open('error_list.json')
-        error_list = json.load(saved_error)
-    except:
-        error_list = []
-    if len(error_list) > 1:
-        first_record = error_list[0]
-        latest_record = error_list[-1]
-        previous_record = error_list[-2]
-        first_time = first_record[0]
-        first_delta = first_record[1]
-        latest_time = latest_record[0]
-        latest_delta = latest_record[1]
-        previous_time = previous_record[0]
-        previous_delta = previous_record[1]
-        FMT = '%Y/%m/%d %H:%M:%S'
-        t_latest = datetime.datetime.strptime(latest_time, FMT)
-        t_previous = datetime.datetime.strptime(previous_time, FMT)
-        t_first = datetime.datetime.strptime(first_time, FMT)
-        tdelta = t_latest - t_previous
-        full_delta = t_latest - t_first
-        elapsed_time = tdelta.total_seconds()
-        full_time = full_delta.total_seconds()
-        print "First record time ", first_time
-        print "First record delta ", first_delta
-        print ""
-        print "Previous record time ", previous_time
-        print "Previous record delta ", previous_delta
-        print ""
-        print "Latest record time " , latest_time
-        print "Latest record delta ", latest_delta
-        print ""
-        print "Overall elapsed time ", full_delta
-        print "Latest elapsed time ", tdelta
-        print ""
-        # Current Error rate
-        time_error = latest_delta - previous_delta
-        error_rate = time_error / elapsed_time
-        daily_rate = error_rate * (60*60*24)
-        ppm_daily = error_rate * 1000000
-        # Overall Error rate
-        total_error = latest_delta - first_delta
-        average_error_rate = total_error / full_time
-        average_rate = average_error_rate * (60*60*24)
-        ppm_overall = average_error_rate * 1000000
-        print "Latest delta change ", time_error
-        print "Latest elapsed time %d seconds " % (elapsed_time)
-        print ""
-        print "Daily PPM : %0.3f" % ppm_daily
-        print "Daily rate error: %0.1f s/d " % (daily_rate)
-        print ""
-        print "Total Time %d seconds" % (full_time)
-        print "Total error ", total_error
-        print "Total PPM : %0.3f" % ppm_overall
-        print "Total rate error: %0.1f s/d" % (average_rate)
-        print ""
-        print "========================================================"
-        print " Delta : %0.1f s | Rate : %0.1f s/d | Average : %0.1f s/d" % (latest_delta, daily_rate, average_rate)
-        print "========================================================"
-        print ""
-    else:
-        print "No rate yet"
-watch_stat()
-</file>
-Running watchstat.py on the newly updated ''error_list.json''
-<code>
-gm4slv@laptop:~/watchcheck_damasko $ python watchstat.py
-First record time  2022/05/04 10:19:30
-First record delta  -30.1799800396
-Previous record time  2022/05/04 10:19:30
-Previous record delta  -30.1799800396
-Latest record time  2022/05/04 10:30:30
-Latest record delta  -30.1998269558
-Overall elapsed time  0:11:00
-Latest elapsed time  0:11:00
-Latest delta change  -0.0198469161987
-Latest elapsed time 660 seconds
-Daily PPM : -30.071
-Daily rate error: -2.6 s/d
-Total Time 660 seconds
-Total error  -0.0198469161987
-Total PPM : -30.071
-Total rate error: -2.6 s/d
-========================================================
- Delta : -30.2 s | Rate : -2.6 s/d | Average : -2.6 s/d
-========================================================
-</code>
- //[[gm4slv@gm4slv.plus.com|John Pumford-Green]] Wed May  4 09:09:09 2022//
-Page Updated : ~~LASTMOD~~
-{{tag>python watch}}