See if a value exists in a DataFrame

Question

In Python to check if a value is in a list you can simply do the following:

>>>9 in [1,2,3,6,9]
True

I would like to do the same f

Answer 1

Basically you have to check the matrix without the schema, so:

 7 in df.values

x in df checks if x is in the columns:

for x in df:
    print x,

out: a b c d