Python Jumpstart by Building 10 Apps Transcripts
Chapter: App 4: Journal app and file I/O
Lecture: Core concept: File I/O
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So that brings us to our next core concept, file I/O. And here you can see we have a list of three text items
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and imagine we want to just write these to a file. So, if we’re going to use that file stream, briefly
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and then when we exit this little segment we are going to close it, we'll use this context manager so we'll start out with,
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create the item as variable name. So, in this case with open and we pass file name and w for write text format, and we want to say as fout,
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for that's the variable I am calling it output file stream. And then we just do whatever we want to do to write to the file,
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so in this case we want to write these three items on three lines and this text file so we just for-in loop over them
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and we say fout.write() the text and as you saw, that does not put a new line on there as it should not, so we have to add it with this \n.