Lets learn how to use reactive programming in python to create asynchronous and event based programs by implementing observables observers subscribers and subjects we will start by getting our data stream from the github with a tornado web socket and then we will filter and process it asynchronously. Reactive programming is a programming paradigm that deals with data flows and the propagation of change it means that when a data flow is emitted by one component the change will be propagated to other components by reactive programming library the propagation of change will continue until it . Why what observables why observables observable model allows you to treat streams of asynchronous events with the same sort of operations that you use for collections of data items like arrays it frees you from callbacks and thereby makes your code more readable and less prone to bugs what observables to support receiving events via push an observable observer pair connect via subscription. Reactive functional programming in python is a lot of fun the resulting code is concise and has no side effects which makes it easy to test if you are a python programmer and have never tried it i recommend you to do so on the other hand i really doubt this code makes any sense to a functional worlds newcomer. Testing reactive guis and a cluster of web servers clients unit testing a basic reactive data flow unit testing a gui reactive data flow this video will be your guide to getting started with reactive programming in python you will begin with the general concepts of reactive programming and then
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