But this convenience brings along a small problem: The backslash is a special character used in regular expressions, but is also used as an escape character inIn other words, it has a special meaning in Python. So, if we need to use the character, we'll have to escape it: \ . This will give the string literal meaning to the backslash. However, in order to match inside a regular expression, we should escape the backslashes, effectively writing four back slashes: \\ .

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22 Dec 2017 Discover Python regular expressions: find basic and complex patterns, Sometimes, the syntax involves backslash-escaped characters and to 8 Jun 2016 The primary use for regular expressions is matching strings. .. The issue comes in because Python uses the backslash character for the same This document is an introductory tutorial to using regular expressions in Python with .. As stated earlier, regular expressions use the backslash character ( '' ) to Learn how to use regular expressions with Python's re module. Python strings also use the backslash to escape characters. The above regexes are written as The backslash must be escaped twice: once for the Python string and once for the regular expression: print re.match("\\m", "\m").group(0) m 14 Jan 2019 If you add a backslash in front of the backslash this special meaning gets lost. In the regex-howto one can read: Perhaps the most important metacharacter is the backslash, . As in Python string literals, the backslash can be followed by various characters to signal various special sequences. 11 Jan 2018 Regular expressions use the backslash character ('') to indicate special forms or to allow special characters to be used without invoking their Regular expressions are a powerful language for matching text patterns. backslashes without change which is very handy for regular expressions (Java needs