関連ワード:  python check if a string is whitespace    python check if a string is only whitespace    python check if a string is empty    python check if a string is all whitespace    python check if a string is empty or none    python check if a string is empty or null    python check if a string contains whitespace    python determine if a string is empty    python check if string is white space    python check if a string is not empty  
結果 : python check if a string is whitespace