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Groups > comp.lang.python > #67743

Re: find and replace string in binary file

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On Wed, Mar 5, 2014 at 12:18 AM, Peter Otten <__peter__@web.de> wrote:
> 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.

If it's actually a binary file (as in, an executable, or an image, or
something), then the *file* won't have an encoding, so you'll need to
know the encoding of the particular string you want and encode your
string to bytes.

ChrisA

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find and replace string in binary file loial <jldunn2000@gmail.com> - 2014-03-04 04:27 -0800
  Re: find and replace string in binary file MRAB <python@mrabarnett.plus.com> - 2014-03-04 13:08 +0000
  Re: find and replace string in binary file Peter Otten <__peter__@web.de> - 2014-03-04 14:18 +0100
  Re: find and replace string in binary file Chris Angelico <rosuav@gmail.com> - 2014-03-05 09:44 +1100
  Re: find and replace string in binary file emile <emile@fenx.com> - 2014-03-04 16:13 -0800
    Re: find and replace string in binary file loial <jldunn2000@gmail.com> - 2014-03-05 01:59 -0800
      Re: find and replace string in binary file Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-03-05 12:42 +0000
      Re: find and replace string in binary file Emile van Sebille <emile@fenx.com> - 2014-03-05 09:46 -0800
  Re:find and replace string in binary file Dave Angel <davea@davea.name> - 2014-03-05 07:06 -0500

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