Practical Python: Learn Python Basics Step by Step- Python 3 - Write to a File

This video tutorial covers the basics of file handling in Python, including creating, writing, overwriting, and appending to files. It explains how to use different modes like 'w' for writing, 'a' for appending, and 'w+' for reading and writing simultaneously. The tutorial also highlights the importance of understanding how these modes affect file content, such as overwriting existing data or appending new data. By the end of the video, viewers will have a clear understanding of how to manage file operations in Python effectively.

What happens to the existing content of a file when it is opened in write mode?

• The content is encrypted before new content is added.

• The content is duplicated and new content is added.

• The content is erased and new content is written from the beginning.

• The content is preserved and new content is added at the end.

Which mode should you use if you want to add content to a file without deleting its current content?

• Append mode

• Write mode

• Delete mode

• Read mode

How can you ensure that each new entry in a file starts on a new line when appending?

• Use a newline character

• Use a tab character

• Use a space character

• Use a comma

Which mode allows you to both read from and write to a file?

• X+

• A+

• W+

• R+

What is the primary function of the 'A+' mode in file operations?

• To read from a file only

• To write to a file only

• To delete a file

• To append to a file and read from it