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Now something you should know is the cursor concept.

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What happens here is that when you create a file, a file object is created and then when you apply the read

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method, before applying the written methods the cursor stands at the very first character of the text

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file.

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When you apply the read methods the cursor goes to the end of the text file.

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So now after the read method has been applied the cursor stands here.

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If you apply another read operation like that, save, execute, what's going to happen is that maybe you

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were expecting these lines to be printed out two times what happens instead is they are printed one

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time and then this is just an empty string 
because the cursor after the first execution of read

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was at this points and below this point there's nothing.

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So you get that empty string there.

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What you can do is, if you want to print the content many times, what you can do is save the content in

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a variable and then print the content as many times as you wish.

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And you'll get the output two times as you can see here.

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That's because the read method was executed only once here.

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So that's something you should know.