Python Replacing white spaces in a text file with a comma
<p>I'm fairly rusty with my python and wanted to know if there was a better way or more efficient way of writing this script. </p>

<p>The scripts purpose it to take a txt log and replace ' '  with replace with ',' to create a .csv.. Makes the logs a little easier to read.</p>

<p>Any suggestions or advice would be appreciated.
Thanks. </p>

<pre><code>import sys
import os
import datetime

t = datetime.datetime.now() ## time set to UTC zone
ts = t.strftime("%Y_%m_%d_ %H_%M_%S") # Date format


if len(sys.argv) != 2: # if CLi does not equal to 2 commands print
print ("usage:progammename.py logname.ext")

sys.exit(1)

logSys = sys.argv[1] 
newLogSys = sys.argv[1] + "_" + ts +".csv"

log = open(logSys,"r")
nL = file(newLogSys  ,"w") 


# Read from file log and write to nLog file
for lineI in log.readlines():
    rec=lineI.rstrip()
    if rec.startswith("#"):
        lineI=rec.replace(':',',').strip() 
        nL.write(lineI + "\n")
    else:
        lineO=rec.replace(' ',',').strip() #
        nL.write(lineO + "\n") 

## closes both open files; End script
nL.close()
log.close()

=====Sample log========
#Date: 2008-04-18 15:41:16
#Fields: date time time-taken c-ip cs-username cs-auth-group x-exception-id sc-filter-result cs-categories cs(Referer) sc-status s-action cs-method rs(Content-Type) cs-uri-scheme cs-host cs-uri-port cs-uri-path cs-uri-query cs-uri-extension cs(User-Agent) s-ip sc-bytes cs-bytes x-virus-id
2012-02-02 16:19:01 14 xxx.xxx.xxx.xxx user domain\group dns_unresolved_hostname DENIED "Games" -  404 TCP_ERR_MISS POST - http updaterservice.wildtangent.com 80 /appupdate/appcheckin.wss - wss "Mozilla/4.0 (compatible; MSIE 8.0; Win32)" xxx.xxx.xxx.xxx 824 697 -
</code></pre>
