Human Friendly Duration Display

duration_display.py

# Avoid magic numbers.
seconds_per_hour = 3600
minutes_per_hour = 60

# Duration is a total number of seconds, but get be derived from timedelta.total_seconds().
t = timedelta(hours=2, minutes=15)
total_seconds = t.total_seconds()

# Store output in a list.
a = list()

# Calculate the number of hours.
hours = int(round(seconds / seconds_per_hour, 0))

if hours == 0:
    pass
elif hours == 1:
    a.append("%s hour" % hours)
else:
    a.append("%s hours" % hours)
    
# Calculate the number of minutes.
minutes = int(round(seconds % seconds_per_hour / minutes_per_hour, 0))
        
if minutes == 0:
    pass
elif minutes == 1:
    a.append("%s minute" % minutes)
else:
    a.append("%s minutes" % minutes)

# Output the duration.
print(" ".join(a)