[Tutor] Increase performance of the script

[Asad]

Hi All ,

          I have the following code to search for an error and prin the
solution .

/A/B/file1.log size may vary from 5MB -5 GB

f4 = open (r" /A/B/file1.log  ", 'r' )
string2=f4.readlines()
for i in range(len(string2)):
    position=i
    lastposition =position+1
    while True:
         if re.search('Calling rdbms/admin',string2[lastposition]):
          break
         elif lastposition==len(string2)-1:
          break
         else:
          lastposition += 1
    errorcheck=string2[position:lastposition]
    for i in range ( len ( errorcheck ) ):
        if re.search ( r'"error(.)*13?"', errorcheck[i] ):
            print "Reason of error \n", errorcheck[i]
            print "script \n" , string2[position]
            print "block of code \n"
            print errorcheck[i-3]
            print errorcheck[i-2]
            print errorcheck[i-1]
            print errorcheck[i]
            print "Solution :\n"
            print "Verify the list of objects belonging to Database "
            break
    else:
        continue
    break

The problem I am facing in performance issue it takes some minutes to print
out the solution . Please advice if there can be performance enhancements
to this script .

Thanks,