A common task in programming is working with CSV data. Writing is easy, just add a comma between the data on a row, but how do you read in a CSV file?
Method 1
Use the split function to break the string when it finds a comma.
data = []
with open("data.csv") as data_file:
file_lines = data_file.read().splitlines()
for line in file_lines:
data.append(line.split(','))Method 2
Import the csv module and use the reader method to go through each line.
import csv
data = []
with open("data.csv") as data_file:
file_lines = csv.reader(data_file)
for line in file_lines:
data.append(line)In the above examples you would end up with an array where each element contains an array representing a row of data from the file. So print(data[0][1]) would print the second column in the first row of the csv file.
