How Can I Import CSV Data into a List of Tuples in Python?

Importing CSV Data into a List in Python

The task at hand is to import data from a CSV file into a list of tuples. A CSV file typically consists of rows of data separated by commas (,). In this case, each row represents a data point with two elements: a string and a category. The desired output is a list of tuples, where each tuple contains the string and the category from each row in the CSV file.

To accomplish this task in Python, we can utilize the widely used csv module. Consider the following steps:

1. Open the CSV File: Open the CSV file for reading using the open() function, ensuring that newline='' is specified to avoid any line ending issues.
2. Create a CSV Reader Object: Instantiating a csv.reader object with the opened file as the argument initializes a reader object.
3. Read Rows into a List: Using the read() method of the reader object, read each row of data into a list. Each row is a list of values, where the first value represents the string, and the second value represents the category.
4. Convert List of Lists to List of Tuples: If you wish to have a list of tuples instead of lists, you can employ list comprehension or the zip() function to achieve this transformation.

Here's an illustrative code snippet:

import csv

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

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

This code will effectively import the CSV data into a list of tuples, meeting the desired output format.

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