Find a value in a given column in a.txt file

Question

I am trying to search for a value at a certain position in the column of a text file and generating another file with these lines, but without success

Follows the code:

arquivo = open('arquivo.txt', 'r')
arquivo2 = open('arquivo2.txt', 'w')

for i in arquivo.readlines():
    if i[70:71] == '02':
        arquivo2.write(i)
        print(i.rstrip())



arquivo.close()
arquivo2.close()

Answer 1

Have you said what happens when you run, if you make a mistake, or if you have some other problem in the result.

Since we don’t have the file, just you, there’s no way to guess what’s going on.

One of the mistakes you can already see is that you make the comparison i[70:71] == '02' however i[70:71] possesses only 1 character so it can never be equal to '02'.

Maybe you want to say i[70:72] or i[69:71] because these have 2 characters.