関連ワード:  python last 3 letters of string    python last 3 characters of string    python last 3 char of string    python get last 3 letters of string    python print last 3 letters of string    python get last 3 characters of string    python print last 3 characters of string    python trim last 3 characters of string    python check last 3 characters of string    python slice last 3 characters of string