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How to Write a Great AI Prompt to Write a Python Script

Most people ask AI to "Write a Python script to process my CSV"—and wonder why the output is mediocre. Here's how to write a prompt that actually gets you what you want on the first try.

Before

"Write a Python script to process my CSV"

Too vague—AI has to guess what you want

After

"Write a Python 3.11 script to process a CSV file with columns: date, product_name, revenue, units_sold. The script should: load the file with pandas, clean nulls and data type errors, calculate total revenue and average units per product, output a summary CSV and print a brief report to the terminal. Add docstrings and inline comments. Handle FileNotFoundError gracefully."

Specific, clear, ready to use

What makes the strong prompt better?

Python version specified prevents outdated syntax

Column names provided means the script is immediately runnable after minor edits

Error handling instruction prevents a script that crashes on basic edge cases

Pro tips for write a python script prompts

  • Always specify your target audience or reader
  • Include concrete examples or context from your situation
  • Set tone guidance—formal, casual, witty, empathetic
  • Add length constraints to avoid rambling output
  • Exclude what you don't want (e.g., "no buzzwords", "no clichés")

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