Python Jumpstart by Building 10 Apps Transcripts
Chapter: App 10: Movie Search App
Lecture: Adding search to the app
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Now, it's fun to play around and sort of explore the api,
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but let's build something that's a little bit more formal,
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a little bit more of a proper app,
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and instead of having you watch me type it all out,
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I kind of put it together and we'll just go over the skeleton bit of it,
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and then we'll actually make it work here next.
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So, we have this main method, and it's going to do two things
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it's going to print out the header and you can imagine
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that just prints out movie search app, nothing major there,
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and then it runs this search event loop here,
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and we're using our dunder main convention;
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so down here it's just going to say go through this while loop,
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and long as you don't press x, it's going to let you keep searching,
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so press x to exit, but if you don't press that, it's going to go do a search, right,
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we'll go down here, and we're going to run this little search,
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so we'll go to this thing that I've created called a movie service,
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and we will call the find movies function,
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and then this is exactly the same thing we did before,
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just printing out the year and title, and if you do hit x
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it gives you this little message like see you.
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Let's look at the movie search,
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really I just moved the stuff that was in a play around function
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over here and put it into a function we can call,
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so we've got our movie, result, name tuple, exactly like before,
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we've got our url, now we're passing in the search text,
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and we're calling requests, checking for the errors
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to make sure everything's ok to carry on, converting to json,
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getting the movie list, doing our cool list comprehension here,
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with our dictionary unpacking thing there, and then we're returning them.
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I guess one more thing that might be fun,
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let's run this real quick just to see that it basically works the same,
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except for now it goes in a loop, so we could search for let's say 'cats',
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we get a bunch of cats, we could search for 'runner' we get runner, and so on
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but notice, the years are just kind of random,
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whatever order it comes back from the service,
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suppose that we would like instead to see the newest movies first,
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so let's go ahead and upgrade this, we'll same movies.sort
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and here we're going to sort, we're going to say key = lambda
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given a movie say m, how are we going to sort it,
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we could say sort by m.year, and that would show oldest to newest
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let's try that, 'runner', see Logan's Run for 76, then Blade Runner,
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now it's sorted, that's great, but not what we were hoping.
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We can sort for numerical values, which this is a number luckily,
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we can sort from numerical values and reverse this by reversing the key,
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so put a negative there, now if I search 'runner'
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then we get 2014, 2013, and so on,
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I installed little programs, every time we restart it,
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PyCharm is creating another one,
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let's get rid of these, and we can fix that real quick.
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We'll go up here, it's just single instance only, now it's going to restart it,
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so if I run it again, it will say I'm going to restart this, it's fine.
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Great, so it looks like this is working,
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we have our skeleton of our app going,
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and now we've moved this finding movies capability over here
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to this movie service and our program is just using it here.
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So it looks like everything's great, but it turns out
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things on the internet can break, so let's go explore that next.
