[Tutor] Equivalent of grep in python

[ppaarrkk]

file1.read() works.


What do I do if I want line numbers ?

I found this code :

http://snippets.dzone.com/posts/show/1638

src = open('2.htm').read()
pattern = '<P>([^<]+)<SUP>'  # or anything else
for m in re.finditer(pattern, src):
       start = m.start()
    	lineno = src.count('\n', 0, start) + 1
    	offset = start - src.rfind('\n', 0, start)
    	word = m.group(1)
    	print "2.htm(%s,%s): %s" % (lineno, offset, word)




Is there not a simpler way than this ?




ppaarrkk wrote:
> 
> The following works :
> 
> file1 = open (file0, "r")
> 
> re.findall ( 'some_text', file1.readline() )
> 
> 
> But this doesn't :
> 
> re.findall ( 'some_text', file1.readlines() )
> 
> 
> 
> How do I use grep for a whole text file, not just a single string ?
> 

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