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So, guys, in this video, we are going to see the fighting put out, but that means you create the

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fighters and we will read the content from the fighters and we write the content to the fans.

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So first we will set fire to descriptor.

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So this will be like object to the fire.

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We specify and generally this is called fire descriptor and it holds some value for this opening the

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fire we need to set open of.

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So you need to open a file.

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And let's say the fire is this black nativity.

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And it's just for our congratulations.

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We are going to click on the properties and get the part.

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Let we copy the part now, I need to base this part.

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So we need to put the back was fresh so that there would be no special characters and to say in what

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more do you want to open the fight?

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If I say read more after it, then we can only read the contents of it so far.

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Now he only read more and that's the contents.

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And if did read.

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Now, the content contains the content, which contains the data of this file.

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So now we can just print the contents.

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And now I trust we will close the file using this file descriptor that Duclos, so first we have opened

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this story and put this.

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So we are opening this flooding in the remote and we are reading the contents using this read matter

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and we are printing this.

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And finally, we are closing the file descriptor.

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So it's a better way to cross fire descriptor.

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And if we run, this will get the contents of the text for which is that congratulations.

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So you can also speak for a number of bytes you want to read.

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If I see for a photo now or read the first four characters of the text, that is different.

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If you do not specify you are, the contents will be, uh, read from the file.

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Can see all the contents have been displayed.

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Now let's assume that there is no file.

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Sorry.

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No, we want to read the file.

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So to do that you need to write more.

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And after reading the contents and its contents is equal to.

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Success.

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So this is some string and we will write to the file if they're not right.

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So now let's go ahead and.

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Coffee, the same lines here, and pushed over so fast during the conference, and we are riding the

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success too.

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So let me run this program to see what contents.

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It's OK.

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It's being read, it is not permitted.

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What I want you to read WPX.

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All right, sorry, we need to specify what we want to write.

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I just want this for.

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We did not get any.

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So one way to find out is we need to bring to the Ifti that this will place the Casser, this unit at

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the location of Fort Carson in this picture.

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So this is the zero Kazar and.

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OK, first, in order to have the content right, we do not we do not have confidence.

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OK.

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So we have got the success in the picture, but I don't know why it's not showing enough of interpreter.

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So as you can see, the contents have been changed, but I don't know why it's not showing in this.

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So, OK, let's just move on.

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So we are reading and we are printing the contents of this file.

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It's a remote.

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And now let's bring the contents.

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So as you can see, the success we remember, so you can also there is this binary what if you are dealing

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with the binary or you want to be you are dealing with the binary data.

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So what do you want to write?

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Something hexadecimal for that matter.

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If their data is encoding, then you read binary more or you can say the binary more.

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So for now, that's w press to write more.

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So let me put this as remote and no, let's see, we have this success right now.

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Let's change that to some rented.

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It's a flat Biton, he's also.

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So in order to do this and run campaign, it says by flag flaggers, Python is awesome right now, I

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don't want to lose it.

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First, a file caster will be placed at the starting point.

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This is a gyro index.

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And whenever we have performed the real from this point on what the contents are, the file will be

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written in the right set.

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And now you can change this cursor to any of these indexes.

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Open press.

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So let's say next fight I think you'll want to do for index four onwards, then the contents from the

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open press will be read.

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So we are going to change the cursor from before the opposition to this fourth position.

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So to do that, we need to say you have three Dot Sitkoff and we need to see four rate four from zero.

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So there are two parameters.

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You want to see the offset from zero.

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So from zero this onwards, you can see four, uh, presses ahead.

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You will see this one is a fortress.

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So now let's try to read this one.

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And as you can see, we did not get the flag because the castle is in the fourth position, that is

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on the fifth element and from Fifth Element on what's the 3D printer.

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You can also print the castle.

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You have to doubt if, Peter.

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And now I'm going to copy this line and just pasted in here to see the difference between them, as

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you can see, the cursor is a the location and then it has to form and then the content from the photo

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index have been printed.

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So there are some general properties of this file, you can say of name, print 250 the name.

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So this is a variable that contains the name of the file we are operating with.

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As you can see, it got the full part from that cedar tree.

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And you can say, A, that is open, it returns to all of us whether the file is open or not.

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I think.

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OK, I think it's gross.

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Since we are not we did not close yet the footprint before this gross matter.

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It will show you first because the fight is not close.

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So that's what these fighting.

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But I hope you have understood this.

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This is very important.

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And we be seeing in this, uh, expert our videos of before we write our expert in Boston that we will

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create a file.

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But in binary, what?

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So shall I told you the normal.

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And there is also happened more and more.

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The difference is the concern will be placed at the end of the file.

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You can change the castle location to zero with the seek method, but we will just use the read and

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write for main purposes.

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So check the open method as well.

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It's just the castle at the end and if you want to write something, it will be appended at the end.

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That's the only difference between.

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Right and so that's what this do.

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I hope you have understood.