So I'm struggling with the basics of reading a csv into a reseach notebook.  The CSV has headers Date, Data1.  When I try the following I only get ‘D’.  How to get the csvreader to read the whole first line?  or better yet to get all the data into a dataframe, then I can start working with the dataframe and match it to other data.

from io import StringIO
import csv
import pandas as pd
qb = QuantBook()
csvfile = qb.Download('https://www.dropbox.com/s/7j45m55pjy1qfrm/test_drop.csv?dl=1')
#df = pd.DataFrame(csv.reader(csvfile))
csvreader = csv.reader(csvfile)
header = []
header = next(csvreader)