関連ワード:  how to negate a statement in python    how to stop a if statement in python    how to negate an if statement in python    how to write a not statement in python    how to stop if else statement in python    how to use not statement in python    how to remove spaces in a sentence in python    how to remove punctuation from a sentence in python    how to remove words from a sentence in python    how to remove vowels from a sentence in python