Binary text isn't found in a binary file

Question

I opened a file in binary mode. I need to find a certain string inside this file and print the line after that. However, the string doesn't appear to be found in the text file. I looked into the text file manually, and the string is definitely found on one line.

I tried opening the file as textfile (not binary mode) and not making the string binary, but that gave an error that I solved with this question. The answer on that question led to the below (and current) code.

with open(os.path.join(directory, filename), 'rb') as read_obj:
    # print(read_obj.read())
    for line in read_obj:
        line_number += 1
        if b"PREPARED FOR" in line:
            break
        print(line_number)

Also maybe the string is split over multiple lines and not all in a single one — pacukluka, May 18 '20 at 01:00
@KaseyChang Yes, it does appear when looking at the file manually. — 12944qwerty, May 18 '20 at 01:40
@LukaKostic no, I can find the text all on one line when browsing the file manually. — 12944qwerty, May 18 '20 at 01:41

score 0 · Accepted Answer · answered May 27 '20 at 00:23

0

Ok. So. Apparently .readlines() worked. I just had to read all the lines, loop through them. Find the one that had the string in it, call that index and add one to find the next line.

answered May 27 '20 at 00:23

12944qwerty

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Binary text isn't found in a binary file

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