[New-bugs-announce] [issue37327] python re bug

Tue Jun 18 02:17:11 EDT 2019

New submission from aixian le <goxushunchao2 at gmail.com>:

the code is:
banner = "HTTP/1.0 404 Not Found\r\nDate: Mon, 17 Jun 2019 13:15:44 GMT\r\nServer:                \r\nConnection: close\r\nContent-Type: text/html\r\n\r\n<HTML><HEAD><TITLE>404 Not Found</TITLE></HEAD>\r\n<BODY><H1>404 Not Found</H1>\r\nThe requested URL /PSIA/index was not found on this server.\r\n</BODY></HTML>\r\n"
        regex = "^HTTP/1\\.0 404 Not Found\\r\\n(?:[^<]+|<(?!/head>))*?<style>"
        print("start")
        regex_re = re.compile(regex)
        print("start1")
        regex_re.search(banner)
        print("end")
when I execute this code ,python cannot finished.

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components: Regular Expressions
messages: 345953
nosy: aixian le, ezio.melotti, mrabarnett
priority: normal
severity: normal
status: open
title: python re bug
type: crash
versions: Python 3.6

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37327>
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