CREATE TABLE "table1_29273057_1" (
  "no_in_series" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" text
);

Question: Who directed the episode with production code ip01003? 
SQL: SELECT "directed_by" FROM "table1_29273057_1" WHERE "production_code"='IP01003';