Kevin Sheppard

Sounds like a clear improvement.

@althonos Sorry about that - seems to be something else!

What if the values differ but he index doesn't? Should PDR return what Yahoo does?

I think you should only drop if the row is identical and the index is identical.

Which black are you using? I'm surprised 93 files have been changed.

Please submit a PR so we can review.

What does this bring that end users couldn't accomplish with subclassing?

If you need to know you are getting correct data you should be considering a commercial data provider.

Are you using 0.7.0?

@raysalem PRs that work around the large change in yahoo's undocumented api are welcome. There was no point in shipping a completely broken connector.