[개인질문] 이중 For문

import pybithumb

df = pybithumb.get_ohlcv("BTC")
jsonData = df.to_dict()
for ohlcv in jsonData:
    print("-" * 10, ohlcv)
    for date in jsonData[ohlcv]:
        print(date, jsonData[ohlcv][date])