python-checkio/Elementary/first-word.py

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2019-12-24 14:52:17 +01:00
import re
def first_word(text: str) -> str:
"""
returns the first word in a given text.
"""
s = re.findall(r"(\b[a-zA-Z']+)", text)
return s[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!")