37 lines
961 B
Python
37 lines
961 B
Python
import math
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def hms_to_seconds(hms):
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'''
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Convert hh:mm:ss string to an integer seconds.
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'''
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parts = hms.split(':')
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seconds = 0
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if len(parts) > 3:
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raise ValueError(f'{hms} doesn\'t match the HH:MM:SS format.')
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if len(parts) == 3:
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seconds += int(parts[0]) * 3600
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parts.pop(0)
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if len(parts) == 2:
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seconds += int(parts[0]) * 60
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parts.pop(0)
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if len(parts) == 1:
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seconds += float(parts[0])
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return seconds
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def seconds_to_hms(seconds):
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'''
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Convert integer number of seconds to an hh:mm:ss string.
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Only the necessary fields are used.
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'''
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seconds = math.ceil(seconds)
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(minutes, seconds) = divmod(seconds, 60)
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(hours, minutes) = divmod(minutes, 60)
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parts = []
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if hours:
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parts.append(hours)
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if hours or minutes:
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parts.append(minutes)
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parts.append(seconds)
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hms = ':'.join(f'{part:02d}' for part in parts)
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return hms
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