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October 20, 2017 06:49
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datetime extract and subtract
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| import datetime | |
| d = '2017-10-16' | |
| df = datetime.datetime.strptime(d, '%Y-%m-%d') | |
| df | |
| Out[6]: datetime.datetime(2017, 10, 16, 0, 0) | |
| df = df - datetime.timedelta(days=1) | |
| df | |
| Out[8]: datetime.datetime(2017, 10, 15, 0, 0) | |
| df.strftime('%Y-%m-%d') | |
| Out[9]: '2017-10-15' |
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