"""

Below, see a sample of /var/log/messages.

---------- begin sample log extract ----------

Jan 20 03:25:08 fakehost logrotate: ALERT exited abnormally with [1]

Jan 20 03:25:09 fakehost run-parts(/etc/cron.daily)[20447]: finished logrotate

Jan 20 03:26:21 fakehost anacron[28969]: Job 'cron.daily' terminated

Jan 20 03:26:22 fakehost anacron[28969]: Normal exit (1 job run)

Jan 20 03:30:01 fakehost CROND[31462]: (root) CMD (/usr/lib64/sa/sa1 1 1)

Jan 20 03:30:01 fakehost CROND[31461]: (root) CMD (/var/system/bin/sys-cmd -F > /dev/null 2>&1)

Jan 20 05:03:03 fakehost ntpd[3705]: synchronized to time.faux.biz, stratum 2

Jan 20 05:20:01 fakehost rsyslogd: [origin software="rsyslogd" swVersion="5.8.10" x-pid="20438" x-info="http://www.rsyslog.com"] start

Jan 20 05:22:04 fakehost cs3[31163]: Q: ".../bin/rsync -LD ": symlink has no referent: "/var/syscmds/fakehost/runit_scripts/etc/runit/service/superImportantService/run"#012Q: ".../bin/rsync -LD ": rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1039) [sender=3.0.6]

Jan 20 05:22:04 fakehost cs3[31163]: I: Last 2 quoted lines were generated by "/usr/local/bin/rsync -LD --recursive --delete --password-file=/var/syscmds/modules/rsync_password /var/syscmds/fakehost syscmds@fakehost::syscmds_rsync"

Jan 20 05:22:08 fakehost cs3[31163]: Q: ".../sbin/sv restart": ok: run: /export/service/cool-service: (pid 32323) 0s

Jan 20 05:22:08 fakehost cs3[31163]: I: Last 1 quoted lines were generated by "/sbin/sv restart /export/service/cool-service"

Jan 20 05:22:09 fakehost cs3[31163]: R: cs3: The cool service on fakehost does not appear to be communicating with the cool service leader. Automating a restart of the cool service in attempt to resolve the communication problem.

Jan 20 05:22:37 fakehost ACCT_ADD: WARNING: Manifest /var/syscmds/inputs/config-general/doit.txt has been processed already, bailing

---------- end sample log extract ----------

Write a script which parses /var/log/messages and generates a CSV with two columns: minute, number_of_messages in sorted time order.

---------- begin sample output ----------

minute, number_of_messages

Jan 20 03:25,2

Jan 20 03:26,2

Jan 20 03:30,2

Jan 20 05:03,1

Jan 20 05:20,1

Jan 20 05:22,6

---------- end sample output ------------

"""

##################################################

#!/usr/bin/python

import re

import os

f=open('/tmp/test/test','r')

my_dict={}

my_re=re.compile(r'(\w{3}\s\w{2}\s\w{2}\:\w{2})',re.I)

for lines in f.readlines():

found=my_re.search(lines.strip())

if found:

key=found.groups()[0]

if key in my_dict:

my_dict[key] = my_dict[key] + 1

else:

my_dict[key] = 1

for k,v in sorted(my_dict.iteritems()):

# print 'key is {:s} and value is {:s}'.format(k,v)

print '%s , %s'%(k,v)