* 겪고 있는 문제 상황을 최대한 자세하게 작성해주세요.

* 문제 해결을 위해 어떤 시도를 해보았는지 구체적으로 함께 알려주세요.

def add_company(code):

company = yf.Ticker(code)

name = company.info['shortName']

industry = company.info['industry']

marketcap = company.info['marketCap']

summary = company.info['longBusinessSummary']

currentprice = company.info['currentPrice']

targetprice = company.info['targetMeanPrice']

per = company.info['trailingPE']

eps = company.info['trailingEps']

pbr = company.info['priceToBook']

rev2021 = company.earnings.iloc[-1,0]

rev2020 = company.earnings.iloc[-2,0]

rev2019 = company.earnings.iloc[-3,0]

ear2021 = company.earnings.iloc[-1,1]

ear2020 = company.earnings.iloc[-2,1]

ear2019 = company.earnings.iloc[-3,1]

doc = {

'name':name,

'industry':industry,

'marketcap':marketcap,

'summary':summary,

'currentprice':currentprice,

'targetprice':targetprice,

'per':per,

'eps':eps,

'pbr':pbr,

'rev2021':rev2021,

'rev2020':rev2020,

'rev2019':rev2019,

'ear2021':ear2021,

'ear2020':ear2020,

'ear2019':ear2019

}

return doc

return에서 오류가 발생하네요...