how to index the column after data.columns

[guilherme]

The table on the Campaing_id column needs to be indexed, but after the line in the ID Company, it is not possible to index.

data(index_col='ID компании')

It's a mistake.

[Marcee]

The simplest thing in your case is to indicate the number of the column that should be an index when reading the file:

data = pd.read_csv(filename, index_col=0)

If it's important for you to have a name, you can do that:

data = pd.read_csv(filename, index_col=0).rename_axis("ID компании")

After that, you can rename the columns, but just take it that ID компании You don't have to tell me now that it's an index, not one of the pillars.