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  1. import re
  2. final_str = 'hello your total sale Fare Rs 741 your bill pls and Sale 2,804.00'
  3. r = re.compile(r'\b(?:Sale|Fare|Rs)\s+(\d+(?:,\d+)*(?:\.\d+)?)', flags=re.I)
  4. gotdata = r.findall(final_str)
  5. print(gotdata)
Success #stdin #stdout 0.02s 9400KB
stdin
Standard input is empty
stdout
['741', '2,804.00']