def duration_str(duration):
mins = int(duration.seconds/60)
hours = int(mins/60)
mins = mins % 60
result = ""
from wsrc.utils.text import plural
if hours > 0:
result += "{hours} hour{s} ".format(hours=hours, s=plural(hours))
if mins > 0:
result += "{mins} min{s}".format(mins=mins, s=plural(mins))
return result