Search and Replace Text in CSV file using Python - csv

Question

I just started with Python 3.4.2 and trying to find and replace text in csv file.
In Details, Input.csv file contain below line:
0,0,0,13,.\New_Path-1.1.12\Impl\Appli\Library\Module_RM\Code\src\Exception.cpp
0,0,0,98,.\Old_Path-1.1.12\Impl\Appli\Library\Prof_bus\Code\src\Wrapper.cpp
0,0,0,26,.\New_Path-1.1.12\Impl\Support\Custom\Vital\Code\src\Interface.cpp
0,0,0,114,.\Old_Path-1.1.12\Impl\Support\Custom\Cust\Code\src\Config.cpp
I maintained my strings to be searched in other file named list.csv
Module_RM
Prof_bus
Vital
Cust
Now I need to go through each line of Input.csvand replace the last column with the matched string.
So my end result should be like this:
0,0,0,13,Module_RM
0,0,0,98,Prof_bus
0,0,0,26,Vital
0,0,0,114,Cust
I read the input files first line as a list. So text which i need to replace came in line[4]. I am reading each module name in the list.csv file and checking if there is any match of text in line[4]. I am not able to make that if condition true. Please let me know if it is not a proper search.
import csv
import re
with open("D:\\My_Python\\New_Python_Test\\Input.csv") as source, open("D:\\My_Python\\New_Python_Test\\List.csv") as module_names, open("D:\\My_Python\\New_Python_Test\\Final_File.csv","w",newline="") as result:
reader=csv.reader(source)
module=csv.reader(module_names)
writer=csv.writer(result)
#lines=source.readlines()
for line in reader:
for mod in module_names:
if any([mod in s for s in line]):
line.replace(reader[4],mod)
print ("YES")
writer.writerow("OUT")
print (mod)
module_names.seek(0)
lines=reader
Please guide me to complete this task.
Thanks for your support!

Answer 1

At-last i succeeded in solving this problem!
The below code works well!
import csv
with open("D:\\My_Python\\New_Python_Test\\Input.csv") as source, open("D:\\My_Python\\New_Python_Test\\List.csv") as module_names, open("D:\\My_Python\\New_Python_Test\\Final_File.csv","w",newline="") as result:
reader=csv.reader(source)
module=csv.reader(module_names)
writer=csv.writer(result)
flag=False
for row in reader:
i=row[4]
for s in module_names:
k=s.strip()
if i.find(k)!=-1 and flag==False:
row[4]=k
writer.writerow(row)
flag=True
module_names.seek(0)
flag=False
Thanks for people who tried to solve! If you have any better coding practices please do share!
Good Luck!