import requests

def fetch_data(option):
  url = f"https://swapi.mimo.dev/api/{option}/"
  data = []
  try:
    response = requests.get(url)
    response.raise_for_status()

    data = response.json()
    print(f"Successfully fetched {len(data)} entities")
  except requests.HTTPError as e:
    print(f"Error fetching data: {e}")
    return None

  return data

option = input("Enter an option (e.g., 'people' or 'planets'): ").strip().lower()
data = fetch_data(option)

if data:
  for entity in data:
    print(entity["name"])
else:
    print("Unable to download data")