FizzBuzz and String Processing

EasyPython

Problem

For an Epsilon Systems coding utility, implement a function that performs three independent operations: generate FizzBuzz labels, find the first non-repeated alphanumeric character, and reverse the order of words in a text string.

Formal Specification

Implement coding_pipeline(text, n). Return a dictionary with these keys:

fizzbuzz: A list of strings for every integer from 1 through n. Use "Fizz" for multiples of 3, "Buzz" for multiples of 5, "FizzBuzz" for multiples of both, and the decimal number otherwise.
first_unique: The first alphanumeric character that occurs exactly once in text, compared case-insensitively. Return the character in lowercase, or None if no such character exists. Ignore spaces and punctuation.
reversed_words: The words from text in reverse order, joined with one space. Any leading, trailing, or repeated whitespace should be normalized.

Constraints

1 <= n <= 10^4
0 <= len(text) <= 10^5
text may contain letters, digits, whitespace, and punctuation
FizzBuzz output must contain exactly n elements

Function Signature

def coding_pipeline(text, n):

Formal Specification

Implement coding_pipeline(text, n). Return a dictionary with these keys:

fizzbuzz: A list of strings for every integer from 1 through n. Use "Fizz" for multiples of 3, "Buzz" for multiples of 5, "FizzBuzz" for multiples of both, and the decimal number otherwise.
first_unique: The first alphanumeric character that occurs exactly once in text, compared case-insensitively. Return the character in lowercase, or None if no such character exists. Ignore spaces and punctuation.
reversed_words: The words from text in reverse order, joined with one space. Any leading, trailing, or repeated whitespace should be normalized.