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Perfect, using the re.DOTALL flag, we can match patterns that span multiple lines.Īnother scenario that could arise when working with multi-line strings is that we may only want to pick out lines that start or end with a certain pattern. '\nThis is a paragraph.\nIt has multiple lines.\n' Let’s try it out: > match = re.search(r'.*', paragraph, re.DOTALL) The re.DOTALL flag tells python to make the ‘.’ special character match all characters, including newline characters. The ‘re’ packages query methods can optionally accept some predefined flags which modify how special characters behave. The problem with this regular expression search is that, by default, the ‘.’ special character does not match newline characters. However, as we see below, this did not work. We may want to grab the entire paragraph tag (contents and all). Consider this snippet of html: > paragraph = \ One case is that you may want to match something that spans more than one line. There are a couple of scenarios that may arise when you are working with a multi-line string (separated by newline characters – ‘\n’). In the first article of this series, we learned the basics of working with regular expressions in Python.
Mac code editor live results multi line substitution series#
This article is part of a series of articles on Python Regular Expressions.