tkinter askopenfilename doesn't allow multiple file selection

Question

All references I can find for askopenfilename suggest that it should allow me to open multiple files within the dialog. Unfortunately that is not working for me. I'm running this under Python 2.7.

from Tkinter import *
from tkFileDialog import askopenfilename

filenames = askopenfilename(parent=root,filetypes=[("CSV Files",".csv")])

Both Ctrl and Shift left-mouse do not change the behavior

Enlightenment is most appreciated.

Answer 1

Apologies all. I'll blame this on a lack of caffeine.

The command should be askopenfilenames