This question is about file handling

Question

Ques. To write a search_binary() function which will read a binary file . The user will give roll number of the student as a input and details of the student will be displayed on the screen after searching from the binary file
in below format

Rno - ___
Name - ____
Marks -____

Answer 1

Your question is not completely viewable, as you tried to post everything in the headline.Please rewrite it! Edit: Done, Thank you!

Moreover I suggest Python Tutorial, maybe this can help you.
Here you can see how to open files:
https://www.sololearn.com/learn/Python/2445/
And her how to read them:
https://www.sololearn.com/learn/Python/2446/

If you cant make your programm, please post your attempt here or specify where you have problems.... Then we can solve it together.....