Python L34 Open File

What does the following line do?

• Reads the file and deletes it

• Opens the file in write mode

• Opens the file in read mode and assigns it to file

• Creates a new file called data.txt

Using with open(...) is a good practice because it automatically closes the file after use.

• True

• False

What error will you get if you try to open a file that doesn’t exist in 'r' mode?

• FileNotFoundError

• PermissionError

• IsADirectoryError

To add new content to the end of an existing file without erasing it, use mode '____'.

Which method reads all lines from a file and stores them in a list?

• .read()

• .readlines()

• .write()

• .print()

What will be the output of this code if the file names.txt contains: Ali, Becky, Charles

• 1

• 2

• 3

• 0

Why is 'w' mode dangerous if you open an existing file?

• The 'w' mode creates a backup of the existing file before writing.
• The 'w' mode allows reading from the file without changes.
• The 'w' mode overwrites the existing file, erasing all its content.

• The 'w' mode appends new data to the existing file.

The .read() method returns a list of lines from the file.

• True

• False

What will this code do?

• Append text to hello.txt

• Read the content of hello.txt

• Overwrite hello.txt and write "Hi there!\n"

• Do nothing unless the file already exists