Code Explanation:
1. Importing the partial Function
from functools import partial
This line imports the partial function from Python’s functools module.
partial() lets you pre-fill (or freeze) some arguments of a function to create a new simplified function.
2. Defining the Original Function
def multiply(a, b, c):
return a * b * c
This defines a function multiply() which takes three arguments: a, b, and c.
It returns the product of the three numbers: a × b × c.
3. Creating a Partially Applied Function
double_and_triple = partial(multiply, a=2, b=3)
This creates a new function called double_and_triple using partial.
The original function multiply() is partially filled with:
a = 2
b = 3
So now, double_and_triple() only needs one argument: c.
Internally, it works like:
multiply(2, 3, c)
4. Calling the Partial Function
print(double_and_triple(4))
You call double_and_triple(4) → this sets c = 4.
So, the full function becomes:
multiply(2, 3, 4)
The result is:
2 × 3 × 4 = 24
5. Final Output
24
The final printed output is 24.
Download Book - 500 Days Python Coding Challenges with Explanation
.png)

0 Comments:
Post a Comment