How to Read and Write CSV Files in Python?

import csv

# Open the CSV file for reading
with open("test.csv", "rt") as f:
    # Create a CSV reader object
    reader = csv.reader(f, delimiter=",", quotechar='"')

    # Iterate over the rows in the CSV file
    for row in reader:
        print(row)

import csv

# Create a list of data to write to the CSV file
data = [
    (1, "A towel", 1.0),
    (42, " it says, ", 2.0),
    (1337, "is about the most ", -1),
    (0, "massively useful thing ", 123),
    (-2, "an interstellar hitchhiker can have.", 3),
]

# Open the CSV file for writing
with open("test.csv", "wt") as f:
    # Create a CSV writer object
    writer = csv.writer(f, delimiter=",", quotechar='"')

    # Write the data to the CSV file
    writer.writerows(data)

1,"A towel,",1.0
42," it says, ",2.0
1337,is about the most ,-1
0,massively useful thing ,123
-2,an interstellar hitchhiker can have.,3