Resolved: python-regex : change the desired word

text = "Thanks for the help, your Help is really good, it's really a big help"</p>
<p>def replace(text,key,value,NumberL):<br />
    i=0<br />
    matches = list(re.finditer(key,text,re.I))<br />
    for i in range(len(matches)):<br />
        while i < len(matches):
            i+=1
            if i == NumberL:
                NumberL = matches[i]
                text = text[:NumberL.start(0)] + "value" + text[NumberL.end(0):]
replace(text,'help','job',[2])
[/code]

</p>



<h2>Answer:</h2>



Using <code>re.sub</code> would be easier than <code>re.finditer</code>:<br> 


<p>[code]import re<br />
text = "Thanks for the help, your Help is really good, it's really a big help"<br />
text = re.sub('help', 'job', text, flags=re.I)<br />
print(text)<br />
# => Thanks for the job, your job is really good, it's really a big job

import re
text = "Thanks for the help, your Help is really good, it's really a big help"
for match in reversed(list(re.finditer('help', text, re.I))):
    text = text[:match.start(0)] + "job" + text[match.end(0):]
print(text)
# => Thanks for the job, your job is really good, it's really a big job

import re
text = "Thanks for the help, your Help is really good, it's really a big help"
matches = list(re.finditer('help', text, re.I))
second_match = matches[1]
text = text[:second_match.start(0)] + "job" + text[second_match.end(0):]
print(text)
# => Thanks for the help, your job is really good, it's really a big help