45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
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"""Provides functions to report statistics on books"""
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from typing import TypedDict
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class CharacterCount(TypedDict):
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"""Represents number of times a character is found in a book"""
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char: str
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num: int
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def count_words_in_book(book_content: str) -> int:
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"""Returns the count of words in the book"""
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return len(book_content.split())
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def count_characters_in_book(book_content: str) -> dict[str, int]:
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"""Returns a dictionary of the number of times a character appears in the book"""
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result = {}
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for character in book_content:
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normalized_character = character.lower()
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if normalized_character in result:
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result[normalized_character] += 1
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continue
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result[normalized_character] = 1
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return result
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def sort_character_counts(counts: dict[str, int]) -> list[CharacterCount]:
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"""Returns a list of character counts in descending order"""
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result: list[CharacterCount] = []
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for entry in counts:
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result.append({ "char": entry, "num": counts[entry] })
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result.sort(reverse=True, key=lambda x: x["num"])
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return result
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