Question

Which of the following are the modes of both writing and reading in binary format in file?

(a) wb+

(b) w

(c) wb

(d) w+

This question was posed to me in an interview for internship.

The question is from Files topic in portion Regular Expressions and Files of Python

Answer 1

The correct choice is (a) wb+

For explanation: Here is the description below

“w”  Opens a file for writing only. Overwrites the file if the file exists. If the file does not exist, creates a new file for writing.

“wb” Opens a file for writing only in binary format. Overwrites the file if the file exists. If the file does not exist, creates a new file for writing.

“w+” Opens a file for both writing and reading. Overwrites the existing file if the file exists. If the file does not exist, creates a new file for reading and writing.

“wb+” Opens a file for both writing and reading in binary format. Overwrites the existing file if the file exists. If the file does not exist, creates a new file for reading and writing.