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File Input/Output
Case Closed?

Finally, we’ll want a way to test whether a file we’ve opened is closed. Sometimes we’ll have a lot of file objects open, and if we’re not careful, they won’t all be closed. How can we test this?

f = open("bg.txt") f.closed # False f.close() f.closed # True

Python file objects have a closed attribute which is True when the file is closed and False otherwise.

By checking file_object.closed, we’ll know whether our file is closed and can call close() on it if it’s still open.

Instructions

1.

Below your withas code, do two things:

  • Check if the file is not closed.
  • If that’s the case, call .close() on it.
  • (You don’t need an else here, since your if statement should do nothing if closed is True.)
  • After your if statement, print out the value of my_file.closed to make sure your file is really closed.
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