如何用类似数字的列重命名许多 dfs？

Question

I have 5 dfs called: control1,control2,control3,control4,control5 .

All of these have a column name 1 . This column name is int type.

How can i change this column name for each df to 'CODIGO' ( str type).

I tried this:

for j in range(1,6):
   exec(f"control{j}=control{j}.rename(columns=lambda x: x.replace(1, 'CODIGO'))")

But does not work. Can you help me please?

Answer 1

Like this:

l = [control1, control2, control3, control4, control5]

for df in l:
    df.rename(columns={1:'CODIGO'}, inplace=True)