Regular expression help: unable to search ' # ' character in the file
fredrik at pythonware.com
Sat Sep 27 14:58:19 CEST 2008
dudeja.rajat at gmail.com wrote:
> import re
> fd = open(file, 'r')
> line = fd.readline
> pat1 = re.compile("\#*")
> mat1 = pat1.search(line)
> if mat1:
> print line
> line = fd.readline()
I strongly doubt that this is the code you used.
> But the above prints the whole file instead of the hash lines only.
"*" means zero or more matches. all lines is a file contain zero or
more # characters.
but using a RE is overkill in this case, of course. to check for a
character or substring, use the "in" operator:
for line in open(file):
if "#" in line:
More information about the Python-list