Context managers in Python are objects that manage the allocation and release of resources within a specific code block. They are used with the with statement, ensuring the proper cleanup of resources even if the exception occurs.
Context managers define the methods _ _enter_ _ () and _ _exit_ _(). The enter method is used to set up the resources before a block of code is executed and the exit method is used to clean up the resources after the code block is executed, regardless of whether the code block completes successfully or raises an exception. Here is a simple example: