How python uses the re.search function

This article will explain in detail how python uses the re.search function, Xiaobian feels quite practical, so share it with you as a reference, I hope you can gain something after reading this article.

re.search

The re.search function looks for pattern matches within the string, only until the first match is found and returns, if no match is found in the string, returns None.

import retext = "PythonTab.com is a good Python website"m = re.search(r'\Pyt(on)n\s', text)if m:print m.group(0), m.group(1)else:print 'not search'

The prototype of re.search is: re.search(pattern, string, flags)

Each parameter has the same meaning as re.match.

The difference between re.match and re.search: re.match matches only the beginning of the string, if the string does not match the regular expression at the beginning, the match fails, and the function returns None; while re.search matches the entire string until a match is found.

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