Edit One Line Across Multiple Files Using File Methods - Python

this is my code: the 'constants' import os import tempfile import shutil file_domini = open('ns_list.txt', 'r') #contains a list of ns dir_name = '/var/named/' filename_suffix

Solution 1:

defzone_file_checker(filename):
    """ aggiunge, modifica e verifica
   le condizioni per cui il file di zona
    sia corretto e non dia problemi
    in fase di migrazione"""
    text = open(filename, 'r')


    # copio file_di_zona su tmp, e rimuovo righe di eventuali# occorrenze di TTLwithopen(create_temporary_copy(filename), 'r+') as tmp:

        for line in text:

            # vedi context manager e anyifnotany(bad_word in line for bad_word in bad_words):
                if line.lstrip().startswith('IN') and'MX'in line:
                    line = "@" + line[1:]
                    tmp.write(line)
                else:
                    tmp.write(line)

            # aggiungo $TTL 1d in prepending# line_prepender(tmp, prep_str)# aggiungo @ davanti agli mx records# escoprint tmp
        tmp.close()
    text.close()

u made 2 mistakes

1)

file_di_zona = open(filename, 'r')      #"file di zona" means zone filetext = file_di_zona.read()

solution use below line dont read. :

text = open(filename, 'r')

2)two ifs for bad words and line

if not any(bad_word in line for bad_word in bad_words):


     if line.lstrip().startswith('IN') and 'MX' in line:
                        line = "@" + line[1:]
                        tmp.write(line)
                    else:
                        tmp.write(line)

last i dont know why r u using line prepender . dont use it.

Solution 2:

In a call to

line_prepender(tmp, prep_str)

tmp is not a filename, as line_prepender expects. This is one possible place where things start to fall apart.

Solution 3:

I edited some line of code now works fine

defzone_file_checker(filename):

zone_file = open(filename, 'r')

# copio file_di_zona su tmp, e rimuovo righe di eventuali# occorrenze di TTLwithopen(create_temporary_copy(filename), 'r+') as tmp:
    line_prepender(tmp, prep_str)
    # print("byte #" + str(tmp.tell()))for line in zone_file:  # if you put tmp it doesn't print @ before mx# vedi context manager e anyifnot'$TTL'in line:
            # aggiungo @ davanti agli mx recordsif line.lstrip().startswith('IN') and'MX'in line:
                line = "@" + line[1:]
                tmp.write(line)
            else:
                tmp.write(line)

    tmp.seek(0, 0)
    # print(tmp.tell())print(tmp.read())

    tmp.close()
zone_file.close()

and the prepender function

def line_prepender(filename, stringa):

filename.seek(0, 0)
filename.writelines([stringa.rstrip('\r\n') + '\n'])