Make it possible to use Kedro after uninstalling Rich.

features/steps/test_starter/{{ cookiecutter.repo_name }}/conf/logging.yml

@@ -23,13 +23,6 @@ handlers:
     encoding: utf8
     delay: True
 
-  rich:
-    class: kedro.logging.RichHandler
-    rich_tracebacks: True
-    # Advance options for customisation.
-    # See https://docs.kedro.org/en/stable/logging/logging.html#project-side-logging-configuration
-    # tracebacks_show_locals: False
-
 loggers:
   kedro:
     level: INFO

kedro/framework/project/default_logging.yml

@@ -2,7 +2,27 @@ version: 1
 
 disable_existing_loggers: False
 
+formatters:
+  simple:
+    format: "%(asctime)s - %(name)s - %(levelname)s - %(message)s"
+
 handlers:
+  console:
+    class: logging.StreamHandler
+    level: INFO
+    formatter: simple
+    stream: ext://sys.stdout
+
+  info_file_handler:
+    class: logging.handlers.RotatingFileHandler
+    level: INFO
+    formatter: simple
+    filename: info.log
+    maxBytes: 10485760 # 10MB
+    backupCount: 20
+    encoding: utf8
+    delay: True
+
   rich:
     class: kedro.logging.RichHandler
     rich_tracebacks: True
@@ -15,4 +35,4 @@ loggers:
     level: INFO
 
 root:
-  handlers: [rich]
+  handlers: [rich, console]

kedro/logging.py

@@ -1,21 +1,23 @@
-"""
-This module contains a logging handler class which produces coloured logs and tracebacks.
-"""
-
 import logging
 import sys
 from pathlib import Path
 from typing import Any
 
 import click
-import rich.logging
-import rich.pretty
-import rich.traceback
+
+try:
+    import rich.logging
+    import rich.pretty
+    import rich.traceback
+
+    RICH = True
+except ImportError:
+    RICH = False
 
 from kedro.utils import _is_databricks
 
 
-class RichHandler(rich.logging.RichHandler):
+class RichHandler(logging.StreamHandler if not RICH else rich.logging.RichHandler):
     """Identical to rich's logging handler but with a few extra behaviours:
     * warnings issued by the `warnings` module are redirected to logging
     * pretty printing is enabled on the Python REPL (including IPython and Jupyter)
@@ -30,6 +32,10 @@ class RichHandler(rich.logging.RichHandler):
     """
 
     def __init__(self, *args: Any, **kwargs: Any):
+        if RICH is False:
+            super().__init__(stream=sys.stdout)
+            return
+
         super().__init__(*args, **kwargs)
         logging.captureWarnings(True)
         rich.pretty.install()

kedro/templates/project/{{ cookiecutter.repo_name }}/conf/logging.yml

@@ -40,4 +40,4 @@ loggers:
     level: INFO
 
 root:
-  handlers: [rich, info_file_handler]
+  handlers: [rich, console, info_file_handler]