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Files & data

Read and write files safely; parse JSON, CSV, and common text formats.

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Files & data easy

Export List of Dicts to CSV in Python

Write a list of dictionaries (dataframe-like) to a CSV file with headers using the standard library csv module and verify by reading it back.

csv export dictwriter
Python 
import csv

def export_to_csv(data, filename):
    """Export a list of dicts to a CSV file."""
    if not data:
        print("No data to export")
        return
    
    # Get column names from the keys of the first dict
    fieldnames = list(data[0].keys())
    
    with open(filename, 'w', newline='', encoding='utf…
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