Programming is all about getting the computer to do the work. Is there a way to get Python to automatically close our files for us?
Of course there is. This is Python.
You may not know this, but file objects contain a special pair of built-in methods:
__exit__(). The details aren’t important, but what is important is that when a file object’s
__exit__() method is invoked, it automatically closes the file. How do we invoke this method? With
The syntax looks like this:
with open("file", "mode") as variable: # Read or write to the file
Check out the example in the editor. Note that we don’t explicitly
close() our file, and remember that if we don’t close a file, our data will get stuck in the buffer. Click Run!
Success! is written to a file called