Telling python that a next line is part of variable

Question

I have this variable

x = (df['DateMask1'] == 'Date') & (df['DateMask2'] == 'Date') & (df['Date1'] > df['Date2'])

How can i say that the second line is part of the variable "x" to python?

x = (df['DateMask1'] == 'Date') & (df['DateMask2'] == 'Date')
    & (df['Date1'] > df['Date2'])