Resource management is one of those things you need to do in any programming language. Whether you are dealing with locks, files, sessions or database connections — you always have to make sure you close and free up these resources for them operate correctly. Usually, one would do that using try/finally - using the resource in try block and disposing of it in finally block. In Python however, there is a better way - the context management protocol implemented using with statement.

So, in this article we will explore what it is, how it works and most importantly where you can find and how you can implement your own awesome context managers!

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