Conditional Checks that span across Multiple Columns

[karlfiehler64]

I'd like to check logical statements such as "If column A has value X, then column B must have one of the values from the list Y" using pandera but I just cant seem to figure it out.

How can I approach this?

[cosmicBboy]

See wide checks. You basically have access to the entire dataframe in the check function, as long as that function returns an index-aligned boolean series (or just a scalar boolean if you don't want granular error reporting), pandera should be able to handle it