modify line in file if pattern found in list.

[kttan]

OS : window xp/7 | python 3
I'm new in python.

looking for help to modify file from a list from file.

master_f file:
!!!! 16 0 1 1526635345 0000
!IPG: rev 09.00p Fri May 18 17:22:26 2018
nodes "+1_5V"
nodes "+1_5V1"
nodes "GND"
nodes "+48V"
nodes "XSIG011083_12"
nodes "XSIG011083_121"
nodes "XSIG013829"

list_f file:
+1_5V
XSIG011083_12
XSIG013829

expected master file after modify:
!!!! 16 0 1 1526635345 0000
!IPG: rev 09.00p Fri May 18 17:22:26 2018
!p_rmv! nodes "+1_5V"
nodes "+1_5V1"
nodes "GND"
nodes "+48V"
!p_rmv! nodes "XSIG011083_12"
nodes "XSIG011083_121"
!p_rmv! nodes "XSIG013829"


Code i'm get from web , and modify some, but it it duplicate my line base on how many list im have, and it output to another file, and im need add "" at my list_f file.

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# open the list of words to search for list_file = open('master_f')   search_words = []   # loop through the words in the search list for word in list_file:       # save each word in an array and strip whitespace     search_words.append(word.strip())   list_file.close()   # this is where the matching lines will be stored matches = [] notmatchs = []   # open the master file master_file = open('list_f') # create the new file new_file = open('output', 'w+')     # loop through each line in the master file for line in master_file:       # split the current line into array, this allows for us to use the "in" operator to search for exact strings     current_line = line.split()       # loop through each search word     for search_word in search_words:           # check if the search word is in the current line         if search_word in current_line:               # if found then save the line as we found it in the file             matches.append(line)             new_file.write('!!p_rmv!  ' + line)             # once found then stop searching the current line             break         else:             new_file.write(line)                                                    master_file.close() new_file.close()

[Gribouillis]

Dedent line 41-42 to align the 'else' with the 'for'.