関連ワード:  python test if string is none or empty    python test if string is null or empty    python check if string is not none or empty    python test for none or empty string    python check if string is null empty or whitespace    python check if string is null or blank    python check if string is not null or empty    python check if none or empty    python check if string is none or empty  
結果 : python test if string is none or empty