python - Pythonic script that ignores timestamps in log files -


there 2 log files : log a , log b.

log  2015-07-12 08:50:33,904 [collection-3]info app -executing scheduled job: system: choppa1  2015-07-12 09:56:45,060 [collection-3] info app - executing scheduled job: system: choppa1  2015-07-12 10:00:00,001 [analytics_worker-1] info  app  - trigger job anbuildauthorizationjob fired.  2015-07-12 11:00:00,007 [analytics_worker-1] info app - starting anbuildauthorizationjob job.    log b  2014-07-12 09:50:33,904 [collection-3] info  app  - executing scheduled job: system: choppa1  2014-07-12 09:56:45,060 [collection-3] info  app  - executing scheduled job: system: choppa1  2014-07-12 10:00:00,001 [analytics_worker-1] info  app  - trigger job anbuildauthorizationjob fired.  2014-07-12 10:00:00,007 [analytics_worker-1] info  app  - starting anbuildauthorizationjob job.

the 2 log files have same content timestamp different. need compare 2 files ignoring timestamp i.e. compare each line of both files , though have different timestamp, shouldn't report difference. wrote following python script this:

#!/usr/bin/python import re import difflib  program = open("log1.txt", "r") program_contents = program.readlines() program.close()   new_contents = []  pat = re.compile("^[^0-9]")  line in program_contents:  if re.search(pat, line):   new_contents.append(line)  program = open("log2.txt", "r") program_contents1 = program.readlines() program.close()   new_contents1 = []  pat = re.compile("^[^0-9]")  line in program_contents1:  if re.search(pat, line):   new_contents1.append(line)  diff=difflib.ndiff(new_contents,new_contents1) print(''.join(diff))

is there more efficient way of writing above script?? , above script works if timestamp in beginning of line. want write python script should work if timestamp somewhere in middle of line. can please me how this?

i  change pat = re.compile("^[^0-9]")               pat = re.compile("\d{4}-d{2}-d{2}

and better open files 

                  open(filename) f:

this way python close file you, no need close(f) statement.


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