Readme.md

ETL Pipeline

This project is an ETL pipeline designed to process lead data from multiple sources, transform it, and load it into an SQLite database for querying and analysis.

Requirements

• Python 3.x
• pandas
• sqlite3

Expected dir structure: etl_pipeline/ ├── etl_pipeline.py # Main ETL pipeline script ├── config.py # Configuration settings ├── data/ │ ├── source1.csv # Data source files │ ├── source2.csv │ └── source3.csv ├── db/ │ └── leads.db # SQLite database ├── logs/ │ └── etl_pipeline.log # Log file for ETL process ├── README.md # Documentation └── requirements.txt # Dependencies

To install dependencies, use: pip install -r requirements.txt

1. Set up your environment: python db_setup.py # Creates the SQLite database and schema

2. Run the ETL Pipeline: python etl_pipeline.py

3. Logs are saved in the logs/etl_pipeline.log file for review.

ETL Process

1. **Extract**: Loads CSV files into Pandas DataFrames, including metadata.
2. **Transform**: Standardizes data formats, deduplicates, and cleans data.
3. **Load**: Inserts transformed data into the SQLite database.

Future Improvements

For scalability:

• Transition to a cloud database like AWS RDS or Redshift for larger datasets.
• Use an orchestration tool like Apache Airflow for managing regular ETL runs.
• Implement QA checks and data validation steps.