Specifically, I want to see if my pandas dataframe contains a False.
It's an nxn dataframe, where the indices are labels.
So if all values were True except for even one cell, then I would want to return False.
your question is a bit confusing, but assuming that you want to know whether there is at least one False in your dataframe, you could simply use
mask = df.mycol == False
mask.value_counts()
mask.sum()
mask.sum() > 0
All will tell you the truth
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