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Previously, we worked with files, but in a superficial level, meaning we perform an operations such

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as changing file names and extensions, deleting and copying files, cetera.

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So actions which did not involve looking inside the files, we did not read or manipulate the contents

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of the files.

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So we're going to do that in this section.

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We're going to load the contents of the files, change the content.

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We're going to read the files.

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But let's be clear about one thing.

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First, there are two major file types.

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Binary and non-binary files.

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Non-binary files are text files, and we're going to work on non-binary files.

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So text files in this section.

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Text files are all files that can be viewed through a text editor.

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For example, the text files that HTML that see us v that puoi files as well.

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All these are examples of text files.

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You can just open these files with a text editor, such as notepads or by charm, et cetera, and you

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can see the contents of these files and the content is always text.

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And of course, you can also edit the content.

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So, for example, that's profiles.

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All we have is text.

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In contrast, binary files are files such as that jpg that zip that and before, and even that PDF and

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Doc X files.

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These are examples of binary files.

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Any file that has information other than text as a binary file?

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Yes, PDF and doc docs contain text, but they also contain other information, such as the phone style

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and the size of the text.

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Sometimes they contain pictures or other media files embedded in the documents in the file.

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On the other hand, text files contain text and only text, and you can load that text in Python as

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a shrink and then manipulate the string and perhaps write the contents back to the file so you are changing

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the contents of the file.

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Of course, it is also possible to manipulate binary files such as PDF or JPEG files.

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But for those files, we need specific Python libraries designed to manipulate a particular file type,

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such as the JPEG.

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And there are sections in the course that cover the processing of PDF files.

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So we have sections on PDF files.

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We have sections on image processing, processing, word documents, etc. But in this section, we focus

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exclusively on non-binary files.

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So text files, let us get started and I'll talk to you in the next video you.