Add an string column to a txt file in Python

Question

Closed. This question needs debugging details. It is not currently accepting answers. question from:https://stackoverflow.com/questions/65660742/add-an-string-column-to-a-txt-file-in-python

Answer 1

With "data.dat" as your file:

with open("data.dat", "r") as msg:
    data = msg.readlines()

output = 0

for line in data:
    with open(str(output)+"_data.dat", "w") as msg:
        for i, char in enumerate(line.strip().split()):
            msg.write("x%s %s %s*2
" % (str(i+1),char,char))
    output += 1

You read your file in a list, you read the lines one by one, you write a new file each line. You split your line and build your string to write in the file.