different.py

def dictkeys_from_value(dictio, value):
    idx_val = list(dictio.values()).index(value)
    return list(dictio.keys())[idx_val]

diff = {}
daftar_negara = []
daftar_perubahan = []
for i, code in enumerate(list(results.keys())):
    # proses ke dataframe supaya lebih mudah untuk ditampilkan ke data
    pd_data = pd.DataFrame.from_dict(results[code])
    daftar_negara.append(dictkeys_from_value(country_codes, code))
    daftar_perubahan.append(((list(pd_data['currency'])[0])-(list(pd_data['currency'])[-1]))/(list(pd_data['currency'])[0])*100)
    
diff["negara"] = daftar_negara
diff["perubahan"] = daftar_perubahan
diff_pd = pd.DataFrame.from_dict(diff)