What is 're.M'?

Newsgroups	comp.lang.python
Date	2014-07-07 07:08 -0700
Message-ID	<a35ecdcb-312a-4fb5-9822-209ea1823774@googlegroups.com> (permalink)
Subject	What is 're.M'?
From	rxjwg98@gmail.com

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Hi,

I learn this short Python code from:

http://www.tutorialspoint.com/python/python_reg_expressions.htm

but I still do not decipher the meaning in its line, even after read its command
explanation.

It says that:
re.M:

 Makes $ match the end of a line (not just the end of the string) and makes ^
 match the start of any line (not just the start of the string). 

More specific, what does 're.M' means? 

I have tried several other modification to the searchObj line, without clue yet.


Could you explain re.M and the following two searchObj mechanisms?

Thanks,



import re

line = "Cats are smarter than dogs";


searchObj = re.search( r'(.*) (.*?) .*', line, re.M|re.I)
# searchObj = re.search( r'(.*) (.*?) .*', line, re.M|re.I)

if searchObj:
   print "searchObj.group() : ", searchObj.group()
   print "searchObj.group(1) : ", searchObj.group(1)
   print "searchObj.group(2) : ", searchObj.group(2)
else:
   print "Nothing found!!"

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Thread

What is 're.M'? rxjwg98@gmail.com - 2014-07-07 07:08 -0700
  Re: What is 're.M'? Skip Montanaro <skip@pobox.com> - 2014-07-07 09:15 -0500
  Re: What is 're.M'? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-07-07 15:25 +0100
  Re: What is 're.M'? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-07-07 14:46 +0000
    Re: What is 're.M'? rxjwg98@gmail.com - 2014-07-07 07:59 -0700
    Re: What is 're.M'? rxjwg98@gmail.com - 2014-07-07 08:16 -0700
    Re: What is 're.M'? rxjwg98@gmail.com - 2014-07-07 08:20 -0700
      Re: What is 're.M'? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-07-07 17:39 +0100

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