[pandas] index already in datetime

[mmcky]

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[mmcky]

@HumphreyYang I will merge this to fix the cache but it looks like PetroChina is no longer a valid ticker in the exercise.

[HumphreyYang]

Hi @mmcky,

# Change the index to date
prices.index = pd.to_datetime(prices.index.date)

This line is needed for Nikkei data to show up. I think the problem in the cache run is caused by missing values in PetroChina.

[HumphreyYang]

Hi @mmcky, I am fixing this issue in #252.

[mmcky]

Hi @mmcky,

# Change the index to date
prices.index = pd.to_datetime(prices.index.date)

This line is needed for Nikkei data to show up. I think the problem in the cache run is caused by missing values in PetroChina.

The issue when I looked at it though is with prices.index.date the index didn't contain a date named parameter.

[HumphreyYang]

Hi @mmcky,

Change the index to date

prices.index = pd.to_datetime(prices.index.date)

This line is needed for Nikkei data to show up. I think the problem in the cache run is caused by missing values in PetroChina.

The issue when I looked at it though is with prices.index.date the index didn't contain a date named parameter.

I saw that as well. It seems 'yfinance' does not return 'datetime' when the ticker is not found.