Re: Review Request of Python Code

Friedrich Rentsch Wed, 09 Mar 2016 01:09:45 -0800


On 03/09/2016 05:18 AM, subhabangal...@gmail.com wrote:

Dear Group,

I am trying to write a code for pulling data from MySQL at the backend and 
annotating words and trying to put the results as separated sentences with each 
line. The code is generally running fine but I am feeling it may be better in 
the end of giving out sentences, and for small data sets it is okay but with 
50,000 news articles it is performing dead slow. I am using Python2.7.11 on 
Windows 7 with 8GB RAM.

I am trying to copy the code here, for your kind review.

import MySQLdb
import nltk
def sql_connect_NewTest1():
     db = MySQLdb.connect(host="localhost",
                      user="*****",
                      passwd="*****",
                      db="abcd_efgh")
     cur = db.cursor()
     #cur.execute("SELECT * FROM newsinput limit 0,50000;") #REPORTING RUNTIME 
ERROR
     cur.execute("SELECT * FROM newsinput limit 0,50;")
     dict_open=open("/python27/NewTotalTag.txt","r") #OPENING THE DICTIONARY 
FILE
     dict_read=dict_open.read()
     dict_word=dict_read.split()
     a4=dict_word #Assignment for code.
     list1=[]
     flist1=[]
     nlist=[]
     for row in cur.fetchall():
         #print row[2]
         var1=row[3]
         #print var1 #Printing lines
         #var2=len(var1) # Length of file
         var3=var1.split(".") #SPLITTING INTO LINES
         #print var3 #Printing The Lines
         #list1.append(var1)
         var4=len(var3) #Number of all lines
         #print "No",var4
         for line in var3:
             #print line
             #flist1.append(line)
             linew=line.split()
             for word in linew:
                 if word in a4:
                     windex=a4.index(word)
                     windex1=windex+1
                     word1=a4[windex1]
                     word2=word+"/"+word1
                     nlist.append(word2)
                     #print list1
                     #print nlist
                 elif word not in a4:
                     word3=word+"/"+"NA"
                     nlist.append(word3)
                     #print list1
                     #print nlist
                 else:
                     print "None"

#print "###",flist1

     #print len(flist1)
     #db.close()
     #print nlist
     lol = lambda lst, sz: [lst[i:i+sz] for i in range(0, len(lst), sz)] 
#TRYING TO SPLIT THE RESULTS AS SENTENCES
     nlist1=lol(nlist,7)
     #print nlist1
     for i in nlist1:
         string1=" ".join(i)
         print i
         #print string1

Thanks in Advance.

I have a modular processing framework in its final stages of completionwhose purpose is to save (a lot of) time coding the kind of problem youdescribe. I intend to upload the system and am currently interested inreal-world cases for the manual. I tried coding your problem, thinkingit would take no more than a minute. It wasn't that easy, because don'tsay what input you have, nor what you expect your program to do.Inferring the missing info from your code takes more time that I canspare. So, if you would give a few lines of your input and explain yourpurpose, I'd be happy to help.


Frederic

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