Python Files Exercises

What is the purpose of the following code snippet?

                with open(file_name, "r") as file:
    content = file.read()

Read the contents of the file with the given file_name and store it in the content variable Write the contents of the content variable to a file with the given file_name

What is the significance of closing a file after reading or writing operations?

Closing a file is necessary to release system resources Closing a file is optional and has no impact on resources associated with the file

Which statement describes a key difference between the following code snippets?

                # Code Snippet 1
with open(file_name, "r") as file:
    content = file.read()

# Code Snippet 2
file= open(file_name, "r")
content = file.read()
file.close()

Code Snippet 2 automatically closes the file after reading, while Code Snippet 1 requires manual closing with the handle.close() statement Code Snippet 1 automatically closes the file after reading, while Code Snippet 2 requires manual closing with the handle.close() statement

Which statement correctly describes the required mode for appending data to a file?

The mode “r” should be used to append data to a file The mode “a” should be used to append data to a file

Which statement correctly describes the required mode for replacing the content of a file?

The mode “w” should be used to replace the content of a file The mode “a” should be used to replace the content of a file

Consider the following scenario:

You have a text file that contains multiple lines of data. You need to read all the lines from the file and process them.

Which method should you use to accomplish this task?

                file_name = "example.txt"

with open(file_name, "r") as file:
    lines = file.''()

for line in lines:
    print(line)  # Process each line as needed

Consider the following scenario:

You have a list of strings representing multiple lines of data that you want to write to a text file.

Which method should you use to accomplish this task?

                file_name = "example.txt"

lines = ["Line 1", "Line 2", "Line 3"]

with open(file_name, "w") as file:
    ''

writelines lines file ( ) .

Python Exercises for File I/O

If you’ve faced difficulties with these exercises, take a look at File I/O Module on my Python course.

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Happy Coding!
Behnam Khani

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Python Files Exercises

Python Exercises for File I/O