exercism/python/little-sisters-essay/string_methods.py

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"""Functions to help edit essay homework using string manipulation."""
def capitalize_title(title):
"""Convert the first letter of each word in the title to uppercase if needed.
:param title: str - title string that needs title casing.
:return: str - title string in title case (first letters capitalized).
"""
return title.title()
def check_sentence_ending(sentence):
"""Check the ending of the sentence to verify that a period is present.
:param sentence: str - a sentence to check.
:return: bool - return True if punctuated correctly with period, False otherwise.
"""
return sentence.endswith(".")
def clean_up_spacing(sentence):
"""Verify that there isn't any whitespace at the start and end of the sentence.
:param sentence: str - a sentence to clean of leading and trailing space characters.
:return: str - a sentence that has been cleaned of leading and trailing space characters.
"""
return sentence.strip()
def replace_word_choice(sentence, old_word, new_word):
"""Replace a word in the provided sentence with a new one.
:param sentence: str - a sentence to replace words in.
:param old_word: str - word to replace.
:param new_word: str - replacement word.
:return: str - input sentence with new words in place of old words.
"""
return sentence.replace(old_word, new_word)