How can I sum value in list of dataframe

Solution 1:

You can apply sum function to the path_pair column:

df['path_pair_sum'] = df['path_pair'].apply(sum)

Output:

  session_id path           path_pair  path_pair_sum
0        T01  abc        [0.03, 0.09]           0.12
1        T02  def  [0.02, 0.15, 0.26]           0.43