'bitwise_and' not supported in python if statement

I have the following if statement:

if data_symbol['Open'].iloc[2] > data_symbol['Open'].iloc[1] & (data_symbol['Close'].iloc[2] < data_symbol['Close'].iloc[1]) :
        print(symbols)

which is producing this error:

TypeError: ufunc 'bitwise_and' not supported for the input types, and the inputs could not be safely coerced to any supported types according to the casting rule ''safe''

Why is it producing this error?