convert_dates.py

import re
import datetime
import pendulum
import datefinder
def review_date_cal(sentence):
	date_value = "NAN"
	now = pendulum.now()
	if 'ago' in sentence:
		if 'day' in sentence:
			value = " ".join(re.findall("[0-9]+", sentence))
			date_value = now.subtract(days=int(value)).to_date_string()
			print(date_value)
		elif 'week' in sentence:
			value = " ".join(re.findall("[0-9]+", sentence))
			date_value = now.subtract(weeks=int(value)).to_date_string()
			print(date_value)
	else:
		date_value = ''.join([i.strftime("%Y-%m-%d") for i in list(datefinder.find_dates(sentence))])
	return date_value


review_date_cal("Reviewed 8 November 2018")
review_date_cal("Reviewed 2 weeks ago")