import csv
from tkinter.filedialog import askopenfilename
import pandas

filename = ""
while not filename.lower().endswith("csv"):
    filename = askopenfilename() # show an "Open" dialog box and return the path to the selected file

## get column letters from header name
## get column data from header name

with open(filename) as f:
    spamreader = csv.reader(f, delimiter=' ', quotechar='|')
    max_len = len(list(spamreader))

    def get_column_data(name):
        da_list = []
        for row in spamreader:
            da_list.append(row[name])
        return da_list

    print(get_column_data("Date"))

#colnames = ['Virtual Memory Commited [MB]']
#data = pandas.read_csv(filename, names=colnames)
#print(data)



## for each column set warning conditions