loial wrote:
> How do I read a binary file, find/identify a character string and replace
> it with another character string and write out to another file?
>
> Its the finding of the string in a binary file that I am not clear on.
That's not possible. You have to convert either binary to string or string
to binary before you can replace. Whatever you choose, you have to know the
encoding of the file. Consider
#python3
ENCODING = "iso-8859-1"
with open(source, encoding=ENCODING) as infile:
data = infile.read()
with open(dest, "w", encoding=ENCODING) as outfile:
outfile.write(data.replace("nötig", "möglich"))
If the file is indeed iso-8859-1 this will replace occurrences of the bytes
b'n\xf6tig' with b'm\xf6glich'
But if you were guessing wrong and the file is utf-8 it may contain the
bytes b'n\xc3\xb6tig' instead which are incorrectly interpreted by your
script as 'nötig' and thus left as is.
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