how to find a substring from a particular row of a file in python

Question

I am trying to read a .txt file with hundreds of names and i want to look for a particular name.

For example, I have several names like

John simons
kumar ayush singh
peter calpidi
david brown

etc and I want to look for a substring ayush and if the substring exists I want to return complete string like kumar ayush singh.

I tried something like this:

try:
    with open('D:\\Any One\\name_list.txt') as names:
        for row in names:
            if row.find(request.strip()) != -1:
               results = row
               print(row)
except Exception as err:
    print(err)

but got an error :

'charmap' codec can't decode byte 0x81 in position 4467: character maps to undefined

Carl_M · Accepted Answer · 2021-12-11T19:20:10.797

0

REF: https://docs.python.org/3.9/library/functions.html#open

Review the errors options for the one you prefer. In the code, I put replace because it will put a marker where the error occurred and continue to process the file.

try:
    with open('D:\\Any One\\name_list.txt',errors='replace') as names:
        for row in names:
            if row.find(request.strip()) != -1:
               results = row
               print(request)
except Exception as err:
    print(err)

edited Dec 11 '21 at 19:20

answered Dec 11 '21 at 18:43

Carl_M

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it's not showing errors now. but it's still not returning name as string for some reason?? any guess why?? – Dec 11 '21 at 18:56
could this be because of find method. i mean i don't use it often so it may be not useful here..?? – Dec 11 '21 at 19:00
Seems like you want to print(request) – Carl_M Dec 11 '21 at 19:15
Please accept my answer if it solved the issue. – Carl_M Dec 11 '21 at 19:21

how to find a substring from a particular row of a file in python

1 Answers1