sort: better organisation.

program added by me few months ago.

is_number.py

@@ -0,0 +1,33 @@
+# importing the module to check for all kinds of numbers truthiness in python.
+import numbers
+from math import pow
+from typing import Any
+
+# Assign values to author and version.
+__author__ = "Nitkarsh Chourasia"
+__version__ = "1.0.0"
+__date__ = "2023-08-24"
+
+
+def check_number(input_value: Any) -> str:
+    """Check if input is a number of any kind or not."""
+
+    if isinstance(input_value, numbers.Number):
+        return f"{input_value} is a number."
+    else:
+        return f"{input_value} is not a number."
+
+
+if __name__ == "__main__":
+    print(f"Author: {__author__}")
+    print(f"Version: {__version__}")
+    print(f"Function Documentation: {check_number.__doc__}")
+    print(f"Date: {__date__}")
+
+    print()  # Just inserting a new blank line.
+
+    print(check_number(100))
+    print(check_number(0))
+    print(check_number(pow(10, 20)))
+    print(check_number("Hello"))
+    print(check_number(1 + 2j))