add new column to dataframe specific position code example

Example 1: insert column at specific position in pandas dataframe

idx = 0
new_col = [7, 8, 9]  # can be a list, a Series, an array or a scalar   
df.insert(loc=idx, column='Col_name', value=new_col)

Example 2: insert column at a specific position in dataframe

df_new.insert(0, 'Group', group)df_new