I have a list of time that looks like this:
["0531","0950", "1232", "2241" ..."]
I need to insert a ":" inside every object in the list, in such a way I have:
["05:31", "09:50", ...]
How can I do that?
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1`print([i[:2] + ':' + i[-2:] for i in ["0531","0950", "1232", "2241"]])` – Nihal Apr 26 '19 at 10:17
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3What have you tried so far? – Paritosh Singh Apr 26 '19 at 10:17
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1Possible duplicate of [Converting string into datetime](https://stackoverflow.com/questions/466345/converting-string-into-datetime) – mkrieger1 Apr 26 '19 at 10:23
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1`[datetime.strftime(datetime.strptime(t, '%H%M'), '%H:%M') for t in the_list]` – mkrieger1 Apr 26 '19 at 10:25
2 Answers
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old_list = ["0531", "0950", "1232", "2241"]
new_list = [a[0:2] + ":" + a[2:4] for a in old_list]
Then print(new_list) will print out ['05:31', '09:50', '12:32', '22:41'].
How does it work?
It creates a list, where each element is the first two characters of each element in the original list a[0:2] concatenated with a : concatenated with the next two a[2:4].
Ollie
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Use a comprehension:
>>> l = ["0531","0950", "1232", "2241"]
>>> [f"{s[:2]}:{s[2:]}" for s in l]
['05:31', '09:50', '12:32', '22:41']
Netwave
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