Row count in a csv file

Question

I am probably making a stupid mistake, but I can\'t find where it is. I want to count the number of lines in my csv file. I wrote this, and obviously isn\'t working: I have

Answer 1

# with built in libraries
opened_file = open('f.csv')
from csv import reader

read_file = reader(opened_file)
apps_data = list(read_file)

rowcount = len(apps_data) #which incudes header row

print("Total rows incuding header: " + str(rowcount))