message: Fix a Python error in the Oriental Pearl Tower effect
diff: @@ -54,7 +54,7 @@ def orientalPearlTowerWhenBuilt(city, iBuilding):
  def orientalPearlTowerEffect(city):
  - city.setBuildingCommerceChange(infos.building(iOrientalPearlTower).getBuildingClassType(), CommerceTypes.COMMERCE_SCIENCE, 2 * city.getPopulation())
  + city.setBuildingCommerceChange(infos.building(iOrientalPearlTower).getBuildingClassType(), CommerceTypes.COMMERCE_RESEARCH, 2 * city.getPopulation())
  @handler("cityCaptureGold")
  