Exploring File Operations in Python

What function is used to read a text file in Python?

• loadText()

• fetchFile()

• readFile()

• open()

How do you write a string to a text file in Python?

• with open('filename.txt', 'r') as file: file.write('Your string here')

• file.write_string('Your string here')

• with open('filename.txt', 'w') as file: file.write('Your string here')

• open('filename.txt') as file: file.write('Your string here')

What mode should you use to open a file for reading in Python?

• r

• x

• a

• w

What is the purpose of the 'with' statement when handling files?

• The 'with' statement is a way to format file names.

• The 'with' statement is used to create a new file.

• The 'with' statement ensures proper resource management by automatically closing the file after its block of code is executed.

• The 'with' statement allows multiple files to be opened simultaneously.

How can you read all lines from a text file at once?

• Use 'file.readlines(filename)'

• Use 'open(filename) as file: lines = file.read()'

• Use 'with open(filename) as file: content = file.getlines()'

• Use 'with open(filename, 'r') as file: lines = file.readlines()' or 'content = file.read()'.

What method is used to write multiple lines to a text file?

• save() method

• append() method

• writelines() method or write() in a loop

• writeall() method

What is the difference between 'r' and 'w' modes in file handling?

• The 'r' mode is for reading, while 'w' mode is for writing (and truncates existing files).

• 'r' mode creates a new file, while 'w' mode appends to existing files.

• Both 'r' and 'w' modes are for reading files only.

• 'r' mode is for writing, 'w' mode is for reading.

How do you handle exceptions when opening a file in Python?

• Open the file without any error handling.

• Use a for loop to iterate through the file contents.

• Use a try-except block to catch exceptions when opening a file.

• Use a print statement to display the file contents.

What is a binary file in the context of Python?

• A binary file is a file that contains only images and videos.

• A binary file is a file that is always compressed and cannot be opened.

• A binary file is a text file that can only be read by humans.

• A binary file is a file that contains data in a non-human-readable format, accessed in binary mode.

How do you open a binary file for writing in Python?

• open('filename', 'r')

• open('filename', 'w')

• open('filename', 'rb')

• open('filename', 'wb')