Programming Language: Python 3 (As of Jan 2022)
Travel() must be initialized first before calling searchAirportInfoByCountry(). Using Pandas, it will read the database that has 9300 airports and search it by the desired country you used to intialize Travel().
self (None; however read description)
  Value of this must be a string of a correctly spelled location.
  location string needs to be a country
luxemburg.searchAirportInfoByCountry()
def searchAirportInfoByCountry(self):
  data = pd.read_excel(Global Airport Database.xlsx", sheet_name= "GlobalAirportDatabase")
  df = pd.DataFrame(data)
  print (df.loc[df["Country"].str.contains(self.location.upper())])
  print("\n")