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We're chugging along here.

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You've learned the basics of reading and writing files now.

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There are two things that trip people up,

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so just keep these in mind.

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First, you have to pass a string, the file's name,

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as the first parameter when you call the open function.

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If you have a variable name whose value is the file name,

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don't put it in quotes.

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If you have a literal file name,

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do put it in quotes.

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Second, you have to keep track of the distinction between the file name,

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a string, the file object,

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does the thing return by the open function,

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and the file's contents which you get by doing operations on the file object.

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I'm glad you made it this far, it's joke time.

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Reading, I had plans to read a book about sinkholes, but they fell through.

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Writing, there was once a young man who professed his desire to become a great writer.

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When asked to define great, he said,

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"I want to write stuff that the whole world will read,

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stuff that people will react to on a truly emotional level,

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stuff that will make them scream,

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cry, howl in pain and anger."

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He now writes the error messages for the Python Interpreter. See you next time.