Tutorial by Topics: context



While Python's context managers are widely used, few understand the purpose behind their use. These statements, commonly used with reading and writing files, assist the application in conserving system memory and improve resource management by ensuring specific resources are only in use for certain processes. This topic explains and demonstrates the use of Python's context managers.

Per Google documentation: "Interface to global information about an application environment. It allows access to application-specific resources and classes, as well as up-calls for application-level operations such as launching activities, broadcasting and receiving intents, etc."

More simply put, Context is the current state of your application. It allows you to provide information to objects so that they can be aware of what is going on in other parts of your application.


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