Create Boolean column with values opposite to another

Question

Be the following DataFrame in pandas:

Column_1	Column_2	Column_3	Column_4	Column_5	New_column
82198	True	False	False	red	True
27498	False	False	False	red	False
84838	False	False	True	red	True
10498	False	True	False	red	True

I want to add another New_column_2 with the opposite values to New_column:

Column_1	Column_2	Column_3	Column_4	Column_5	New_column	New_column_2
82198	True	False	False	red	True	False
27498	False	False	False	red	False	True
84838	False	False	True	red	True	False
10498	False	True	False	red	True	False

Answer 1

A possible solution:

df['New_column_2'] = ~df['New_column']

Answer 2

did you try:

df['new_column2'] = ~df['new_column']