Passing a function as an argument to another function is a powerful feature in Python that allows for dynamic programming. This tutorial will guide you on how to pass a function as an argument to another function in Python.
Steps:
1. Define the functions that will be used as arguments. For demonstration purposes, we will define two functions: add
and subtract
.
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def add(x, y): return x + y def subtract(x, y): return x - y |
2. Define the function that will receive the function arguments. For this example, we will define a calculator
function that will take two numbers and a function to perform an operation on the numbers.
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def calculator(x, y, func): return func(x, y) |
3. Call the calculator
function with the two numbers and the function you want to perform. In this example, we will call the calculator
function with the numbers 5 and 3 and the add
function to get the sum of 5 and 3.
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result = calculator(5, 3, add) print(result) |
The output should be:
8
4. You can also call the calculator
function with the subtract
function to get the difference of 5 and 3.
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result = calculator(5, 3, subtract) print(result) |
The output should be:
2
Conclusion
In conclusion, passing a function as an argument to another function can be a powerful tool in Python for dynamic programming. By following the steps laid out in this tutorial, you now know how to pass a function as an argument to another function in Python.
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def add(x, y): return x + y def subtract(x, y): return x - y def calculator(x, y, func): return func(x, y) result = calculator(5, 3, add) print(result) result = calculator(5, 3, subtract) print(result) |