Python Jumpstart by Building 10 Apps Transcripts
Chapter: App 6: LOLCat Factory
Lecture: Introducing the LOLCat Factory App
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Hello and welcome to app number 6. We are calling this one The Cat Factory, as in LOL Cats, it's going to be fun. What exactly is a LOL Cat Factory?
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Well, it may be a bit of a strange title but it's going to look like this. So we are going to have our standard header
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and then I happen to know of a web service that will give you a random LOL Cat it's very important service on the internet
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we are going to use it to return data, to our app. Previously in the weather app we had used Requests to make HTTP Requests against the weather site
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and actually get the HTML's text. But now we are going to work with binary data, and the cat pictures
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and then we are going to write that to a binary file which is quite different than using text files.
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Finally, you can see at the bottom it says launching output folder and finder so we are going to start a subprocess from our app
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and if this returning on Windows, it would say launching output in explorer. So what core concepts are we going to cover in this app?
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Well, it's going to be a little bit shorter than the previous two marathon apps, but we are going to come back and talk about HTTP clients again,
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this time with binary data and we said we are going to save those to binary files and we are going to use sub-processes launching other applications
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from within ours to actually interact and display those pictures to the user. We are also going to come back to this
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OS independent file and folder management and do a little bit more than we had been previously doing with our other apps.
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All right, so let's get to it.