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Hey, welcome back.

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In this video, we will replace this first line.

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With this I.D. with capital letters, Cuomo amount comma cost.

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So when we run the Python script, this line will be replaced to this text.

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Let's do this.

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Let's open merge that.

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See, as we file, that is a file that has to be changed in read mode first as file.

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And we get the contents file that's read the lines.

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So this method gives us a list of all the lines so that we can work on a line level.

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We've at least known.

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We see something like content zero equals two.

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That's shrink I.D. coma amount of cost.

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So what that does is this let's suppose we have this list a a sequel to a one to three.

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If you see the item within the zero has to be replaced with, let's say this.

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String, what you get is a list with this new item as the first item, the item with index zero.

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So that is what we're doing here.

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And then you open the file again in right mo this time.

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And you can use roids lines and just pass content there, the list.

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So this is one way to do it.

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You run that merge that see us view now has these new content with this new line.

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But we forgot to add a backslash here, so let me run again.

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Yeah, now it looks fine.

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So that is one way to do it the other way, which I think it would be unnecessary would be to convert

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to the least into a string using the joint methods which we used in the previous video of then use rides

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to ride the string in the file.

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So rides, who works with strings and writes lines, works with lists.

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So this is a list that is the equivalent of read lines.

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So that's completes this vigil.

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Thank you.

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And let's do some more.