mirror of https://github.com/Textualize/rich.git
48 lines
1.7 KiB
ReStructuredText
48 lines
1.7 KiB
ReStructuredText
Logging Handler
|
|
===============
|
|
|
|
Rich supplies a :ref:`logging handler<logging>` which will format and colorize text written by Python's logging module.
|
|
|
|
Here's an example of how to set up a rich logger::
|
|
|
|
import logging
|
|
from rich.logging import RichHandler
|
|
|
|
FORMAT = "%(message)s"
|
|
logging.basicConfig(
|
|
level="NOTSET", format=FORMAT, datefmt="[%X]", handlers=[RichHandler()]
|
|
)
|
|
|
|
log = logging.getLogger("rich")
|
|
log.info("Hello, World!")
|
|
|
|
Rich logs won't render :ref:`console_markup` in logging by default as most libraries won't be aware of the need to escape literal square brackets, but you can enable it by setting ``markup=True`` on the handler. Alternatively you can enable it per log message by supplying the ``extra`` argument as follows::
|
|
|
|
log.error("[bold red blink]Server is shutting down![/]", extra={"markup": True})
|
|
|
|
|
|
Handle exceptions
|
|
-------------------
|
|
|
|
The :class:`~rich.logging.RichHandler` class may be configured to ues Rich's :class:`~rich.traceback.Traceback` class to format exceptions, which provides more context than a builtin exception. To get beautiful exceptions in your logs set ``rich_tracebacks=True`` on the handler constructor::
|
|
|
|
|
|
import logging
|
|
from rich.logging import RichHandler
|
|
|
|
logging.basicConfig(
|
|
level="NOTSET",
|
|
format="%(message)s",
|
|
datefmt="[%X]",
|
|
handlers=[RichHandler(rich_tracebacks=True)]
|
|
)
|
|
|
|
log = logging.getLogger("rich")
|
|
try:
|
|
print(1 / 0)
|
|
except Exception:
|
|
log.exception("unable print!")
|
|
|
|
|
|
There are a number of other options you can use to configure logging output, see the :class:`~rich.logging.RichHandler` reference for details.
|