June 2017
Beginner
320 pages
7h 37m
English
book
Learn Python 3 the Hard Way: A Very Simple Introduction to the Terrifyingly Beautiful World of Computers and Code
by Zed A. Shaw
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Exercise 16. Reading and Writing Files
If you did the Study Drills from the last exercise, you should have seen all sorts of commands (methods/functions) you can give to files. Here’s the list of commands I want you to remember:
• close: Closes the file. Like File->Save... in your editor.
• read: Reads the contents of the file. You can assign the result to a variable.
• readline: Reads just one line of a text file.
• truncate: Empties the file. Watch out if you care about the file.
• write('stuff'): Writes “stuff” to the file.
• seek(0): Moves the read/write location to the beginning of the file.
One way to remember what each of these does is to think of a vinyl record, cassette tape, VHS tape, DVD, or CD player. In the early days of computers, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.