python - Extract value from dataframe as float/int in pandas -

i trying extract value of 1 column based on other 2 columns dataframe in python. returns sequence object.

df['a'].where((df['b'] == val1) & (df['c'] == val2)) 

how can extract value of column in int/float or how can convert sequence object int or float?

you can use slicing of column, using mask this:

df['a'][(df['b'] == val1) & (df['c'] == val2)] 

but if want ot modify inplace values of corresponding slice, should try using loc operator:

df.loc[(df['b'] == val1) & (df['c'] == val2),'a']