Fix pandas issue about lans

[sarahharun]

Dr Medal, I almost forgot everything. In order to fix it, I need the source code of version 5 and 6.1 and the error message.

[hmedal]

The source code is in this Github repo, right? And the error message is listed in Mandy's comment above, right?

[sarahharun]

Yes, sorry I lost the github repo link for version 5 and 6, but now I got them from the branches. The sponsors are saying that an error occurred in those two lines, but I need to know what was the error (the description of the error e.g. column missing, argument not matching etc). I will check the version of Pandas at Shadow, if it is not 0.21.1, then I can try to reproduce the error in my laptop. But without knowing the exact error, I may never be sure whether I am addressing the correct error.

[sarahharun]

Pandas version is 0.16.2 at Shadow.

[hmedal]

Ok I will ask the sponsor for the issue. And please test it with pandas 0.19.1 on Shadow.