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Title: Dynamic Method Invocation in Python: A Comprehensive Tutorial
Introduction:
Dynamic method invocation in Python allows you to call a method on an object at runtime, without knowing the method name in advance. This flexibility is achieved through Python's ability to manipulate attributes and functions dynamically. In this tutorial, we'll explore various ways to call methods dynamically using Python, along with practical examples.
Method 1: Using getattr():
The getattr() function in Python retrieves the value of a named attribute of an object. It can be used to dynamically call a method by passing the method name as a string.
Method 2: Using a dictionary of methods:
Create a dictionary that maps method names to their corresponding functions, and then call the method dynamically.
Method 3: Using locals() or globals():
You can use the locals() or globals() functions to access the local or global namespace and dynamically call methods.
Conclusion:
Dynamic method invocation in Python provides a powerful way to work with methods at runtime. Whether using getattr(), a dictionary of methods, or locals()/globals(), these techniques offer flexibility and adaptability in situations where method names are determined dynamically. Choose the approach that best suits your specific requirements and coding style.
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