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Reading and Writing Files in Python: Summary

Reading and Writing Files in Python Darren Jones 00:59

In this course, you learned about reading and writing files in Python. You covered everything from what a file is made up of to which libraries can help you along that way. You also took a look at some basic scenarios of file usage as well as some advanced techniques.

You now know what makes up a file and why that’s important in Python, the basics of reading and writing files in Python, and some basic scenarios of reading and writing files.

Congratulations, you made it to the end of the course! Make it stick: Mentor AI will check what you’ve got down, help you build something with it, and find your #1 takeaway to share in the discussion.

Or go straight to the discussion section and share your #1 takeaway and how you’ll put your new skills to use.

00:01 Well done, you’ve reached the end of this series on reading and writing files in Python.

00:06 You’ve seen how to open and close files safely with a number of different methods. You’ve seen different methods you can use to read different amounts of data from a file, whether it’s bytes, lines, or the entire file’s contents. You’ve seen how you can write one or more strings to an open file, and also how you can add content to the end of a file.

00:28 You’ve seen the differences in creating paths on Windows and other OSes, and how you can deal with that using Python’s os module. You’ve seen the difference between line endings on Windows and other OSes.

00:42 And you’ve seen how you can examine the contents of a file in-depth using just a few lines of Python to understand what’s really going on at the lowest level.

00:52 I hope you’ve enjoyed these videos and found them useful and we’ll see you again soon at realpython.com.

markthiele on March 19, 2020

Thanks, very useful!

Cristian Palau on April 10, 2020

Thank you!

pshapard on April 12, 2020

Thanks for this course.

Howard M Sherman on April 22, 2020

I’m sort of a newbie to Python, and I believe that this course would be much richer if it gave some more background information to some fundamental topics such as: text vs. binary data; reading files a line at a time vs. reading the whole file into memory at once; unicode data and its utf-8 encoding vs. ascii; etc. Reading and writing files is a fundamental skill for Python or any other programming language, and I just feel this course was a bit short on the background information needed for one who isn’t already experienced in Python to benefit.

Dan Bader RP Team on April 22, 2020

Thanks for your feedback Howard! This course is intended for an intermediate skill level. If you’re looking for an introduction to working with files in Python, I’d like to recommend the following resources:

beingpython on Aug. 29, 2020

Very well done!

Ghani on Nov. 2, 2020

Nice and simple introduction to the subject; thanks a lot!

Eriberto on Nov. 6, 2020

Love the course, good job by the author. Would have been more great if exercise files were added to the resources link. Yeah, I know there is supplementary post related to this like realpython.com/read-write-files-python/#what-is-a-file but the exercises presented can be a good hands on to follow along if exercise files were added. Overall thumbs up to Darren.

scottbeecher on July 30, 2021

Excellent layout; nicely paced.

nickyniu123 on Aug. 27, 2023

Very good course.

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