Building Professional Automation CLIs with Typer + Rich + Loguru 2026
Create beautiful, informative, and well-logged command-line tools in minutes.
Complete CLI Example
import typer
from rich.console import Console
from rich.progress import track
from loguru import logger
app = typer.Typer()
console = Console()
@app.command()
def run_etl(folder: str = typer.Argument(...)):
logger.info(f"Starting ETL for folder: {folder}")
for file in track(list(Path(folder).glob("*.csv")), description="Processing files"):
process_file(file)
console.print("[bold green]ETL completed successfully![/]")
if __name__ == "__main__":
app()
Conclusion
Your internal tools will look and behave like commercial software.