Typer

typer_echo replaces typer.echo to route all CLI output through Logly's logging system.

Installation

This integration requires the typer package.

uv

uv add logly[typer]

pip

pip install "logly[typer]"

uv (without extras)

uv add typer

pip (without extras)

pip install typer

Missing Dependency

If typer is not installed, you'll see:

ModuleNotFoundError: No module named 'typer'

Usage

import typer
from logly.integrations.typer import typer_echo

typer.echo = typer_echo

app = typer.Typer()

@app.command()
def cli():
    typer.echo("This goes through Logly")

Function Signature

typer_echo has the same signature as typer.echo as a drop-in alternative:

Argument	Type	Description
message	Any	Message to log
file	Any	Ignored (kept for compatibility)
nl	bool	Whether to append a newline
err	bool	Whether this is an error message (maps to WARNING level)
color	bool | None	Ignored (kept for compatibility)

Tips

• Messages sent with err=True are logged at WARNING level; all others at INFO.
• Assign typer.echo = typer_echo early in your CLI entry point, before any commands run.

Full Example

import typer
from logly import logger
from logly.integrations.typer import typer_echo

typer.echo = typer_echo

app = typer.Typer()
logger.add("cli.log", level="INFO")

@app.command()
def greet(name: str):
    typer.echo(f"Hello, {name}!")
    typer.echo("Something went wrong", err=True)

if __name__ == "__main__":
    app()