Python equivalent to replace function in R

Question

I know that there is replace() function in R, which helps me to replace specific values based on a condition. Is there an equivalent to that in python?

Answer 1

There is actually a replace function in python too.

Let me demonstrate it with an example:

    A  B
0  1  1
1  2  2
2  3  3

The value '3' in column 'B' can be replaced like this:

my_df['B']=my_df['B'].replace(3, 30)

   A   B
0  1   1
1  2   2
2  3  30