How to get scalar value on a cell using conditional indexing

Question

I have the dataframe shown below. I need to get the scalar value of column B, dependent on the value of A (which is a variable in my script). I\'m trying the loc() function

Answer 1

elaborating on @ShineZhang comment:

x.set_index('A').at[2, 'B']

6

pd.__version__

u'0.22.0'