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pytimeparse

A small Python module to parse various kinds of time expressions.

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pytimeparse: time expression parser

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Copyright (c) 2014 Will Roberts wildwilhelm@gmail.com

Licensed under the MIT License (see source file timeparse.py for details).

A small Python library to parse various kinds of time expressions, inspired by this StackOverflow question <http://stackoverflow.com/questions/4628122/how-to-construct-a-timedelta-object-from-a-simple-string>_.

The single function pytimeparse.timeparse.timeparse defined in the library (also available as pytimeparse.parse) parses time expressions like the following:

  • 32m
  • 2h32m
  • 3d2h32m
  • 1w3d2h32m
  • 1w 3d 2h 32m
  • 1 w 3 d 2 h 32 m
  • 4:13
  • 4:13:02
  • 4:13:02.266
  • 2:04:13:02.266
  • 2 days, 4:13:02 (uptime format)
  • 2 days, 4:13:02.266
  • 5hr34m56s
  • 5 hours, 34 minutes, 56 seconds
  • 5 hrs, 34 mins, 56 secs
  • 2 days, 5 hours, 34 minutes, 56 seconds
  • 1.2 m
  • 1.2 min
  • 1.2 mins
  • 1.2 minute
  • 1.2 minutes
  • 172 hours
  • 172 hr
  • 172 h
  • 172 hrs
  • 172 hour
  • 1.24 days
  • 5 d
  • 5 day
  • 5 days
  • 5.6 wk
  • 5.6 week
  • 5.6 weeks

It returns the time as a number of seconds (an integer value if possible, otherwise a floating-point number)::

>>> from pytimeparse import parse
>>> parse('1.2 minutes')
72

A number of seconds can be converted back into a string using the datetime module in the standard library, as noted in this other StackOverflow question <http://stackoverflow.com/questions/538666/python-format-timedelta-to-string>_::

>>> from pytimeparse import parse
>>> import datetime
>>> parse('1 day, 14:20:16')
138016
>>> str(datetime.timedelta(seconds=138016))
'1 day, 14:20:16'

Future work

  1. Give the user more flexibility over which characters to use as separators between fields in a time expression (e.g., + might be useful).
  2. Internationalisation?
  3. Wow, https://github.com/bear/parsedatetime .

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