Python 3 for Beginners: Python File Handling

The video tutorial covers file handling in Python, including opening, reading, writing, and closing files. It explains the use of the 'with' statement for automatic file closure, reading files line by line, and different file modes such as read, write, and append. The tutorial also discusses handling binary files and using try-except blocks for error management. Key concepts include the use of file objects, attributes, and methods like 'close', 'read', and 'write'.

What is the purpose of the 'with' statement in Python file handling?

• To automatically close a file after its block of code is executed

• To open multiple files simultaneously

• To read a file line by line

• To write data to a file

How can you remove trailing whitespace and carriage return characters from a line read from a file?

• Using the 'lstrip' method

• Using the 'replace' method

• Using the 'rstrip' method

• Using the 'strip' method

Which mode should you use to open a file for writing, ensuring that it does not overwrite an existing file?

• W

• R

• A

• X

What does the 'R' mode do when opening a file in Python?

• Opens the file in binary mode

• Opens the file for reading only

• Opens the file for writing only

• Opens the file for appending

What happens if you try to open a file in 'X' mode and the file already exists?

• An exception is raised

• The file is overwritten

• The file is opened in read mode

• The file is opened in append mode

Which method is used to write data to a file in Python?

• read()

• write()

• append()

• close()

How can you handle exceptions when a file cannot be opened in Python?

• Using a 'for' loop

• Using a 'finally' block

• Using a 'try-except' block

• Using a 'while' loop