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+--- Thread: How do you replace a word after a match from a list of words in each line of a file? (/thread-21839.html)
How do you replace a word after a match from a list of words in each line of a file? - vijju56 - Oct-17-2019
We are looking for replacing a word after each match in a list of words for each line in a file
Quote:This is Manager Sam speaking.Hello, how are you? I am Fine. this is Director Tom. Nice to Meet you Manager Sam.
import re
f1=open('testinput.txt', 'r')
f2=open('testoutput.txt', 'w')
checkWords = ["Manager","Director"]
repWords = ("*** ")
for line in f1:
i = 0
for i in range(len(checkWords)):
# Find the next word after the search word
list1 = re.compile(r'%s\s+((?:\w+(?:\s+!$)) {1})' %checkWords[i]).findall(line)
checkWords = ','.join(list1)
print(checkWords)
line = line.replace(checkWords, repWords)
print(line)
f2.write(line)
f1.close()
f2.close()Output:Expected Output:
This is Manager * speaking.Hello, how are you? I am Fine. this is Director * Nice to Meet you Manager ***
But, Output I am getting now: * T* h*** i*** s*** * i* s*** * M* a*** n*** a*** g*** e*** r*** * S* a*** m*** * s* p*** e*** a*** k*** i*** n*** g*** .* H* e*** l*** l*** o*** ,* * h*** o*** w*** * a* r*** e*** * y* o*** u*** ?***RE: How do you replace a word after a match from a list of words in each line of a file? - baquerik - Oct-17-2019
Hello vijjuu,
there are so many stars in your output because this line of code returns nothing and every character is then a match
list1 = re.compile(r'%s\s+((?:\w+(?:\s+!$)) {1})' %checkWords[i]).findall(line)There must be way better ways of doing this, but this code gives the output you were asking for:f1=open('testinput.txt', 'r')
f2=open('testoutput.txt', 'w')
checkWords = ["Manager","Director"]
repWords = ("*")
for line in f1:
words = line.split(" ")
for i in range(len(words)):
for checkword in checkWords:
if words[i] == checkword:
words[i+1] = repWords
newline = ""
for word in words:
newline = newline + word + " "
print(newline)
f2.write(newline)
f1.close()
f2.close()Output:This is Manager * speaking.Hello, how are you? I am Fine. this is Director * Nice to Meet you Manager *