allow overriding logging.basicConfig

examples/override_logging.py

@@ -0,0 +1,23 @@
+from sanic import Sanic
+from sanic.response import text
+import json
+import logging
+
+logging_format = "[%(asctime)s] %(process)d-%(levelname)s "
+logging_format += "%(module)s::%(funcName)s():l%(lineno)d: "
+logging_format += "%(message)s"
+
+logging.basicConfig(
+    format=logging_format,
+    level=logging.DEBUG
+)
+log = logging.getLogger()
+
+# Set logger to override default basicConfig
+sanic = Sanic(logger=True)
+@sanic.route("/")
+def test(request):
+    log.info("received request; responding with 'hey'")
+    return text("hey")
+
+sanic.run(host="0.0.0.0", port=8000)

sanic/log.py

@@ -1,5 +1,3 @@
 import logging
 
-logging.basicConfig(
-    level=logging.INFO, format="%(asctime)s: %(levelname)s: %(message)s")
 log = logging.getLogger(__name__)

sanic/sanic.py

@@ -6,10 +6,11 @@ from multiprocessing import Process, Event
 from signal import signal, SIGTERM, SIGINT
 from time import sleep
 from traceback import format_exc
+import logging
 
 from .config import Config
 from .exceptions import Handler
-from .log import log, logging
+from .log import log
 from .response import HTTPResponse
 from .router import Router
 from .server import serve
@@ -18,7 +19,13 @@ from .exceptions import ServerError
 
 
 class Sanic:
-    def __init__(self, name=None, router=None, error_handler=None):
+    def __init__(self, name=None, router=None,
+                 error_handler=None, logger=None):
+        if logger is None:
+            logging.basicConfig(
+                level=logging.INFO,
+                format="%(asctime)s: %(levelname)s: %(message)s"
+            )
         if name is None:
             frame_records = stack()[1]
             name = getmodulename(frame_records[1])

tests/test_logging.py

@@ -0,0 +1,33 @@
+import asyncio
+from sanic.response import text
+from sanic import Sanic
+from io import StringIO
+from sanic.utils import sanic_endpoint_test
+import logging
+
+logging_format = '''module: %(module)s; \
+function: %(funcName)s(); \
+message: %(message)s'''
+
+def test_log():
+    log_stream = StringIO()
+    for handler in logging.root.handlers[:]:
+            logging.root.removeHandler(handler)
+    logging.basicConfig(
+        format=logging_format,
+        level=logging.DEBUG,
+        stream=log_stream
+    )
+    log = logging.getLogger()
+    app = Sanic('test_logging', logger=True)
+    @app.route('/')
+    def handler(request):
+        log.info('hello world')
+        return text('hello')
+
+    request, response = sanic_endpoint_test(app)
+    log_text = log_stream.getvalue().strip().split('\n')[-3]
+    assert log_text == "module: test_logging; function: handler(); message: hello world"
+
+if __name__ =="__main__":
+    test_log()