Added partial.md in functools module

content/python/concepts/functools-module/terms/partial/partial.md

@@ -0,0 +1,69 @@
+---
+Title: 'partial()'
+Description: 'Creates a new function with some arguments of the original function pre-filled.'
+Subjects:
+  - 'Computer Science'
+  - 'Data Science'
+Tags:
+  - 'Functions'
+  - 'Python'
+CatalogContent:
+  - 'learn-python-3'
+  - 'paths/computer-science'
+---
+
+The **`functools.partial()`** function in Python’s [`functools`](https://docs.python.org/3/library/functools.html) module returns a new callable with some arguments of the original function fixed (pre-filled). This can simplify calls by creating specialized versions of existing functions.
+
+## Syntax
+
+```pseudo
+from functools import partial
+partial_func = partial(func, /, *args, **keywords)
+```
+
+**Parameters:**
+
+- `func`: The original callable to be partially applied.
+- `*args`: Positional arguments to pre-fill.
+- `**keywords`: Keyword arguments to pre-fill.
+
+**Return value:**
+
+A `functools.partial` object that behaves like the original function but with the specified arguments fixed.
+
+## Example: Pre-filling a Keyword Argument
+
+In this example, the `exponent` parameter is fixed to 2, creating a specialized version of the `power` function that always squares the input:
+
+```py
+from functools import partial
+
+def power(base, exponent):
+  return base ** exponent
+
+square = partial(power, exponent=2)
+
+print(square(5))
+```
+
+The output of this code is:
+
+```shell
+25
+```
+
+## Codebyte Example: Pre-filling a Positional Argument
+
+This example fixes the `greeting` argument of the `greet` function to always use `"Hello"`:
+
+```codebyte/python
+from functools import partial
+
+def greet(greeting, name):
+  return f"{greeting}, {name}!"
+
+say_hello = partial(greet, "Hello")
+
+print(say_hello("Alice"))
+print(say_hello("Bob"))
+```