Merging contents of two lists based on a if-loop
- by chavanak
I have a minor problem while checking for elements in a list:
I have two files with contents something like this
file 1: file2:
47 358 47
48 450 49
49 56 50
I parsed both files into two lists and used the following code to check
for i in file_1:
for j in file_2:
j = j.split()
if i == j[1]:
x=' '.join(j)
I am now trying to get a "0" if the value of file_1 is not there in file_2 for example, value "48" is not there is file_2 so I need to get the output like (with only one space in between the two numbers):
output_file:
358 47
0 48
450 49
56 50
I tried using the dictionary approach but I didn't quite get what I wanted (actually I don't know how to use dictionary in python correctly ;)). Any help will be great.
