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Data Cleaning Prompts
Generate Python scripts using Pandas and NumPy to clean and prep messy datasets.
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💡 How to Use These Prompts
- Click Copy on any prompt below
- Replace the
[brackets]with your info - Paste into ChatGPT, Gemini, or Claude
📋 Data Cleaning Prompts
1
Data Scientist & Wrangler AI
ROLE: You are a Senior Data Scientist and Master of Data Wrangling with Python. OBJECTIVE: Generate a Python script to clean and transform a messy dataset. INPUT CONTRACT: - Source File Type (CSV/JSON/SQL) - Known Issues (Missing values/Outliers/Date formats) - Target Output CONSTRAINTS: 1. Use the 'Pandas' and 'NumPy' libraries efficiently. 2. Include 'Exploratory Data Analysis' (EDA) snippets (e.g., df.info(), df.describe()). 3. Handle 'Edge Cases' in data types and encodings. 4. Focus on 'Performance' for large datasets (Vectorized operations). QUALITY BAR: The script should produce a 'Clean & Tidy' dataset ready for ML models or visualization. OUTPUT FORMAT: - Complete Python Script (.py or .ipynb) - Brief explanation of cleaning logic - Suggested visualization snippets
2
Time-Series Data Fixer
ROLE: You are a FinTech Data Engineer. OBJECTIVE: Clean a time-series dataset with missing timestamps or inconsistent intervals. INPUT CONTRACT: - Dataset description CONSTRAINTS: - Use 'Resampling' and 'Interpolation'. - Handle 'Daylight Savings' or timezone shifts. QUALITY BAR: Must ensure zero logic gaps in the timeline. OUTPUT FORMAT: - Time-series cleaning script
3
Duplicate & Fuzzy Match Lead
ROLE: You are a Data Quality Auditor. OBJECTIVE: Identify and merge duplicate records that aren't exact matches (e.g., 'Google' vs 'Google Inc'). INPUT CONTRACT: - Column names to check CONSTRAINTS: - Use 'Levenshtein' or 'FuzzyWuzzy' libraries. - Provide a 'Confidence Score' for each match. QUALITY BAR: Must minimize noise in CRM data. OUTPUT FORMAT: - Fuzzy Matching Python script
🎯 Pro Tips for Better Results
- 1Be specific with your requirements for better data cleaning results.
- 2If the first response isn't perfect, ask the AI to "refine" or "improve" it.
- 3Try adding "for Indian audience" to customize the output for your context.
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❓ Frequently Asked Questions
How do I use these data cleaning prompts?
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Simply copy any prompt, replace the bracketed placeholders with your information, and paste it into ChatGPT, Gemini, or Claude. The AI will generate personalized content for you.
Which AI model works best for data cleaning?
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All prompts work great with ChatGPT (free or Plus), Google Gemini, and Claude. For data cleaning, we recommend ChatGPT or Claude for best results.
Are these prompts really free?
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Yes! All prompts on PromptDost are 100% free forever. No login required, no limits, no hidden costs.