How to Import a CSV File into a List in Python?

Import CSV File into List in Python

Importing a CSV file into a list in Python is a common task. In this article, we'll demonstrate how to accomplish this using the csv module.

Method:

1. Import the csv module: import csv
2. Open the CSV file using a context manager: with open('file.csv', newline='') as f:
3. Create a reader object: reader = csv.reader(f)
4. Convert the reader object to a list: data = list(reader)

Example:

Consider a CSV file with the following data:

This is the first line,Line1
This is the second line,Line2
This is the third line,Line3

To import this data into a list, we can use the following code:

import csv

with open('file.csv', newline='') as f:
    reader = csv.reader(f)
    data = list(reader)

print(data)

Output:

[['This is the first line', 'Line1'], ['This is the second line', 'Line2'], ['This is the third line', 'Line3']]

Note: If you need tuples instead of lists, you can modify the above code as follows:

with open('file.csv', newline='') as f:
    reader = csv.reader(f)
    data = [tuple(row) for row in reader]

This will produce a list of tuples:

[('This is the first line', 'Line1'), ('This is the second line', 'Line2'), ('This is the third line', 'Line3')]

For Python 2 users, you can use the following code:

import csv
with open('file.csv', 'rb') as f:
    reader = csv.reader(f)
    your_list = list(reader)

print your_list

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