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First Word solution in Clear category for First Word by Komet_kazi
# You are given a string where you have to find its first word.
# When solving a task pay attention to the following points:
# There can be dots and commas in a string.
# A string can start with a letter or, for example, a dot or space.
# A word can contain an apostrophe and it's a part of a word.
# The whole text can be represented with one word and that's it.
# Input: A string.
# Output: A string.
# Precondition: the text can contain a-z A-Z , . '
def first_word(text: str) -> str:
"""Returns the first word in a given text."""
# clean string of any leading or trailing spaces, commas, periods
strippedText = text.strip(" ,.")
# replace remaining commas and periods with spaces
convertedText = strippedText.replace(",", " ").replace(".", " ")
# Split string using spaces
splitText = convertedText.split()
# Return the first word in the text
return splitText[0]
if __name__ == '__main__':
print("Example:")
print(first_word("Hello world"))
# These "asserts" are used for self-checking and not for an auto-testing
assert first_word("Hello world") == "Hello"
assert first_word(" a word ") == "a"
assert first_word("don't touch it") == "don't"
assert first_word("greetings, friends") == "greetings"
assert first_word("... and so on ...") == "and"
assert first_word("hi") == "hi"
assert first_word("Hello.World") == "Hello"
print("Coding complete? Click 'Check' to earn cool rewards!")
March 13, 2021
