Read/Write text file

Question

I am trying to change a some lines in a text file without affecting the other lines. This is what\'s inside the text file called \"text.txt\"

this is  a test         


        

Answer 1

try this solution

with open('test', inplace=True) as text_file:
    for line in text_file:
         if line.rsplit('|', 1)[-1].strip() == 'number3':
             print '{}|{} \n'.format('this is replacement', 'number7')
         else:
             print line