How to extract time from string in python using pattern matching?

Question

An example of the python string is '8:30 AM- 10:00 PM Subject: Math'. In general, the string contains a start time, end time, and the subject I want to separate this string into 3 components: the start time, end time, and subject. For example 8:30 AM, 10:00 PM, and Subject: Math.

How can I do this using regex in python?

alecxe · Accepted Answer · 2016-08-17 00:01:55Z

2

You can use re.split() using a positive lookbehind to AM or PM having an optional - and a space character as a delimiter:

>>> import re
>>>
>>> s = "8:30 AM- 10:00 PM Subject: Math"
>>> re.split(r"(?<=AM|PM)-?\s", s)
['8:30 AM', '10:00 PM', 'Subject: Math']

answered Aug 17, 2016 at 0:01

alecxe

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