Archive for January, 2013

Python Application 1 – Format File Content

 
Step 1
 
Open any text editor (gedit,pico,vi,nano) then enter the following python script and save the file with .py extension.
 
#!/usr/bin/python
#Author : Jijo K Jose
 
input_file = raw_input("\nEnter input file name : ")
output_file = "file_new.txt"
 
h1 = open(input_file,"r")
 
print "\n—————————-"
print "Input File Content"
print "—————————-\n"
 
for i in h1:
 print i,
 
h1.close()
 
h1 = open(input_file,"r")
 
h2 = open(output_file,"w")
 
k=0
 
for i in h1:
 i2 = i.split(',')
 for j in i2:
  n = len(j)
  if j[n-1] =="\n":
   h2.write(j)
  else:
   h2.write(j)
   h2.write("\n")
 
h1.close()
h2.close()
 
print "\n—————————"
print "Output File Content – file_new.txt"
print"—————————-\n"
 
h1 = open(output_file,"r")
for i in h1:
 print i,
 
print "\n—————————\n"
 
#END

Read more »

Chapter 22 – Python Regular Expression Part 5

 
Step 1
 
Open any text editor (gedit,pico,vi,nano) then enter the following python script and save the file with .py extension.
 
#!/usr/bin/python
#Author : Jijo K Jose
 
print "\n————————————\nChapter 22 – Regular Expression 5 \n————————————\n"
 
import re
 
in_str = raw_input("Enter a text         : ")
 
se_str = raw_input("Enter search string  : ")
 
re_str = raw_input("Enter replace string : ")
 
count = 2
 
reg1 = re.compile(se_str)
 
print "Result : ",reg1.sub(re_str,in_str,count)
 
print "\n———————————–\n"
 
#END

Read more »

Chapter 21 – Python Regular Expression Part 4

 
Step 1
 
Open any text editor (gedit,pico,vi,nano) then enter the following python script and save the file with .py extension.
 
#!/usr/bin/python
#Author : Jijo K Jose
 
print "\n————————————\nChapter 21 – Regular Expression 4 \n————————————\n"
 
import re
 
in_str = raw_input("Enter an email address : ")
 
se_str = "\w+@\w+\.[com|in|org|net]"
 
reg1 = re.compile(se_str)
 
search1 = reg1.search(in_str)
 
if search1:
 print "\nValid email address"
else:
 print "\nInvalid email address"
 
print "\n———————————–\n"
 
#END

Read more »