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Let's take a look at the help

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documentation of open,

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and you'll see that the open function gets a bunch of

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arguments. The first two are the most

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important ones. We already used file,

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which is the path to the file object,

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and for these other ones, we use their

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default values, which means for modes, we

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used r, r means read, therefore, this

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quote here is the same as

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this.

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So you get the same output. Which one should

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you use? Well, for to make the code

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simpler and shorter, this is fine. To

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make the code more explicit in terms of

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readability so that others can see that

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this is about reading the code, then

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you'd use this, either way is fine. Now

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what can we use for writing? For writing,

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you'd use w for write and let me

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create a new file under the files folder, call

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it vegetables. So a vegetables file

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doesn't exist currently in my files

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folder. This will be created by the open

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function. And then in that empty file,

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we're going to write something, write

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Tomato. Of course, the content variable

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doesn't make sense here, because we're

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not fetching some data from the file,

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we're just writing there. So let's keep

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it like that, Save it,

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execute, and a

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vegetables.txt file has been created

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in my computer with a Tomato string

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there. Let me put it here. So the read

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method looks for an existing file, the

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write method creates a new file, and I

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should warn you that if the file exists,

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like in this case, fruits.txt is

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there, if that is the case, Python will

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overwrite the existing file. So if you

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open fruits.txt now, you'll see that

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you have this new content of the file.

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So the existing content is discarded.

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How can we write more lines? Well, we

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have to use the backslash n special

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string which creates break lines.

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Onion, execute. So this is fruits.txt.

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And you get these three lines as we expected.

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Something, you should know is that

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you can apply more than one method

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to the open file. Let's write Garlic here.

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Now intentionally, I didn't do

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something I was supposed to do to show

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you what happens. So Garlic was

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immediately put after Onion because

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there is no space or a backslash n

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operator there. If I put a space here,

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you of course, it gets a space between

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Onion and Garlic. But what you want

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instead is you want that after each line

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you write, you want a backslash n, and in

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that case, you'd get the correct output.

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So now you're probably wondering, well,

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I have this fruits.txt file, I don't

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want to overwrite it. How can I actually

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add another line under this existing

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lines? And I'll show you how to do that

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in the next video.

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