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

Nov 30, 2024 pm 12:58 PM

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

Importing CSV Data into a List in Python

When working with CSV (Comma-Separated Values) files in Python, one may encounter the need to import the data into a list for further processing. This question addresses this scenario, providing a comprehensive solution to convert CSV data into a structured list of tuples or strings.

Using the csv module, we can achieve this with a simple code block:

import csv

# Open the CSV file
with open('file.csv', 'r') as f:
    # Create a CSV reader
    reader = csv.reader(f)
    
    # Convert CSV data to a list of tuples
    data = list(reader)
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This code will read the CSV file, with each row represented as a tuple within the data list. The format of each tuple is (string, category).

Alternatively, if you prefer a list of strings, simply modify the code as follows:

...
# Convert CSV data to a list of strings
data = [row for row in reader]
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For older versions of Python 2, the updated code is:

import csv
with open('file.csv', 'rb') as f:
    reader = csv.reader(f)
    your_list = list(reader)
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Regardless of your Python version, the solution provided enables you to effectively import CSV data into a list, either as tuples or strings, streamlining your data manipulation tasks.

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