What role is played by file modes in file operations? Describe the various file mode constants and their meanings.

Q. What role is played by file modes in file operations? Describe the various file mode constants and their meanings.

Answer =

File mode refers to how the file will be used once it's opened.

There are three types of file modes:-

(1) read mode :- It will read data of file according to program.
(2) write mode :- Python delete all data and write new data according to user.
(3) append mode :- The data in the file is retained and new data being written will be appended to end.