Python | Utilizing the template method for code reusability

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Template method

In Python, the Template method is a way to perform string substitution using a simple syntax that separates the template from the data. The Template method is part of the built-in string module and provides a way to substitute variables in a string template with values from a dictionary or other mapping object.

Here's an example of using the Template method in Python:

from string import Template

template = Template('Hello, $name!')

message = template.substitute(name='John')

print(message) # Output: Hello, John!

In this example, we import the Template class from the string module and define a string template that contains a variable called name. We then create a dictionary that maps the variable name name to the value 'John', and use the substitute() method of the Template object to replace the variable in the template with the corresponding value. Finally, we print the resulting message to the console.

The Template method is useful when you have a fixed template that needs to be used with different data. It allows you to separate the template from the data, making it easier to manage and modify the template without affecting the data. The Template method also provides a simple syntax for defining variables in the template and replacing them with values, making it easier to read and understand the code.