Ticket data from different timezone are not aligned (bug introduced with #1085)

[DE0CH]

I am trying to find correlations between tickets in differnet timezone (one in the New York Stock exchange and the other in the London Stock Exchange). Due to changes to the timezone logic, the data in each row of yfinance.download are no longer the data of the Tickets at the same time. Using ignore_tz=False fixes this problem. This problem didn't exist with version 0.1.77 and previous. So I think by default ignore_tz should be set to False as that behaviour is consistent with the previous minor versions.

[ValueRaider]

But ignore_tz=True is default behaviour. Sounds like you copy-pasted from README without reading - post your code please.

[DE0CH]

I wrote my code with version 0.1.75. I upgraded my packages the other day and found out my data analysis was completely off. Using ignore_tz=False brought back the old behaviour. See below for a minimal example

import yfinance as yf

tickets = yf.download(tickers=f"^FTSE ^DJI", period='7d', interval='1m', ignore_tz=True)
for index, row in tickets.iterrows():
    a = row['Close']['^FTSE']
    b = row['Close']['^DJI']
    # a and b are not data at the same time 

tickets = yf.download(tickers=f"^FTSE ^DJI", period='7d', interval='1m', ignore_tz=False)
for index, row in tickets.iterrows():
    a = row['Close']['^FTSE']
    b = row['Close']['^DJI']
    # a and b are data at the same time

[ValueRaider]

I understand now, behaviour has changed since old version. Do you mind submitting a PR?

[DE0CH]

Sure. Is the PR just changing the default value to ignore_tz=False?

[ValueRaider]

Yes. I know it's trivial but I want community to be more involved in code.

Edit: update doc & README too, says default = True

[DE0CH]

I didn't see doc, so I just updated README.