Pandas Data Frame - logical or of all columns

Question

I have a dynamically created data frame which contains, multiple columns with True/False values. Let's say that it looks like this:

A	B	C
True	True	False
False	True	False
False	False	False

I need to create a column which values will be a result of logical or on the rest of the columns.

The output would look like this:

A	B	C	OR
True	True	False	True
False	True	False	True
False	False	False	False

Answer 1

Use DataFrame.any:

df['OR'] = df.any(axis=1)

If need filter only some columns:

cols = ['A','B']
df['OR'] = df[cols].any(axis=1)