Question: Right here we go I might have this completely wrong.

I'm working in Wordpress.

On a page I'm creating a html select menu (Main menu) with options that relate to each page in the site. This menu is displayed on the page.

I'm also creating select menus with options for each page (Page Menus), these menu's aren't displayed but stored in a php variable.

The options in the Main Menu relate to these php variable which are the Page Menus 

Now when an option is selected in Main menu I would like to load the related Page Menu but I don't want to relaod the page.

Can I store the HTML code for the Page Menus then load them with AJAX when the related option is selected in the Main Menu.

Hope this makes sense and someone can help.

Answer: 
I recently had this same issue and was able to solve it using pandas default unnamed method.

```
data = pd.read_csv('advertising.csv', header=0, index_col=[0] , usecols=['Unnamed: 0', 'radio','sales'])

```
If I understand this question correctly, I think you may have to read in the entire csv file as a dataframe and then select the columns that you want.... Something like this:

```
import pandas as pd
df = pd.read_csv(yourdata, index_col=0).loc[:,'header1']

```