I am used to ( in Perl ) the entire string being searched for a match when using RegExp's. I assumed this was the way Python would do it do, as Java/Javascript/VbScript all behaved in this manner. However, I found that I had to add ".*" in front of my regular expression object before it would search the entire string for a match. This seems a bit unusual from my past experience, but it solved the issue I was experiencing.
Thank you for your help. John Gooch -----Original Message----- From: Kent Johnson [mailto:[EMAIL PROTECTED] Sent: Tuesday, December 14, 2004 10:41 AM To: Gooch, John Cc: '[EMAIL PROTECTED]' Subject: Re: [Tutor] Regexp Not Matching on Numbers? I'm not too sure what you are trying to do here, but the re in your code matches the names in your example data: >>> import re >>> name = 'partners80_access_log.1102723200' >>> re.compile(r"([\w]+)").match( name ).groups() ('partners80_access_log',) One thing that may be tripping you up is that re.match() only matches at the *start* of a string, as if the regex starts with '^'. For matching anywhere in the string use re.search() instead. Another possible problem is that you are defining regexp but not using it - have you been trying to change the value of regexp and wondering why the program doesn't change? If you are looking for file names that end in log.ddd then try re.search(r'log\.\d+$', name) If this doesn't help please be more specific about the format of the names you want to match and exclude. Kent Gooch, John wrote: > This is weird. I have a script that checks walks through directories, > checks to see if their name matches a certain format ( regular > expression ), and then prints out what it finds. However, it refuses > to ever match on numbers unless the regexp is ".*". So far I have > tried the following regular > expressions: > "\d+" > "\d*" > "\W+" > "\W*" > "[1-9]+" > and more... > > > Here is an example of the output: > No Match on partners80_access_log.1102723200 > Checking on type=<type 'str'> Name = some_access_log.1102896000 > > > Here is the code: > import os,sys > import re > #define the file mask to identify web log files > regexp = re.compile( r"\." ) > > startdir = "C:/Documents and Settings/John.Gooch/My Documents/chaser/" > #define global functions def delFile(arg, dirname, names): > found = 0 > for name in names: > print "Checking on type="+str(type( name ) )+" Name = "+str(name) > matches = re.compile(r"([\w]+)").match( name ) > if matches: > print "Match on "+str(matches.groups()) > found = 1 > else: > print "No Match on "+name > if not found: > print "No matches found in "+dirname > else: > print "Match found in "+dirname > os.path.walk( startdir, delFile, "" ) > > > > > Any thoughts? > _______________________________________________ > Tutor maillist - [EMAIL PROTECTED] > http://mail.python.org/mailman/listinfo/tutor > _______________________________________________ Tutor maillist - [EMAIL PROTECTED] http://mail.python.org/mailman/listinfo/tutor
