Allow look for logger_name in ConsoleRenderer

Fixes #295

CHANGELOG.rst

@@ -30,6 +30,9 @@ Changes:
   `#302 <https://github.com/hynek/structlog/pull/302>`_
 - The default configuration and loggers are pickleable again.
   `#301 <https://github.com/hynek/structlog/pull/301>`_
+- ``structlog.dev.ConsoleRenderer`` will now look for a ``logger_name`` key if no
+  ``logger`` key is set.
+  `#295 <https://github.com/hynek/structlog/pull/295>`_
 
 
 ----

src/structlog/dev.py

@@ -153,6 +153,8 @@ class ConsoleRenderer:
     .. versionchanged:: 19.2 Can be pickled now.
     .. versionchanged:: 20.1 ``colorama`` does not initialize lazily on Windows
        anymore because it breaks rendering.
+    .. versionchanged: 21.1 It is additionally possible to set the logger name
+       using the ``logger_name`` key in the ``event_dict``.
     """
 
     def __init__(
@@ -255,6 +257,9 @@ def __call__(
         sio.write(self._styles.bright + event)
 
         logger_name = event_dict.pop("logger", None)
+        if logger_name is None:
+            logger_name = event_dict.pop("logger_name", None)
+
         if logger_name is not None:
             sio.write(
                 "["

tests/test_config.py

@@ -28,8 +28,8 @@
 )
 
 
-@pytest.fixture
-def proxy():
+@pytest.fixture(name="proxy")
+def _proxy():
     """
     Returns a BoundLoggerLazyProxy constructed w/o parameters & None as logger.
     """

tests/test_dev.py

@@ -23,25 +23,25 @@ def test_negative(self):
         assert len("test") == len(dev._pad("test", 2))
 
 
-@pytest.fixture
-def cr():
+@pytest.fixture(name="cr")
+def _cr():
     return dev.ConsoleRenderer(colors=dev._has_colorama)
 
 
-@pytest.fixture
-def styles(cr):
+@pytest.fixture(name="styles")
+def _styles(cr):
     return cr._styles
 
 
-@pytest.fixture
-def padded(styles):
+@pytest.fixture(name="padded")
+def _padded(styles):
     return (
         styles.bright + dev._pad("test", dev._EVENT_WIDTH) + styles.reset + " "
     )
 
 
-@pytest.fixture
-def unpadded(styles):
+@pytest.fixture(name="unpadded")
+def _unpadded(styles):
     return styles.bright + "test" + styles.reset
 
 
@@ -139,14 +139,29 @@ def test_logger_name(self, cr, styles, padded):
         """
         rv = cr(None, None, {"event": "test", "logger": "some_module"})
 
-        # fmt: off
         assert (
-            padded +
-            "[" + dev.BLUE + styles.bright +
-            "some_module" +
-            styles.reset + "] "
+            padded
+            + "["
+            + dev.BLUE
+            + styles.bright
+            + "some_module"
+            + styles.reset
+            + "] "
         ) == rv
-        # fmt: on
+
+    def test_logger_name_name(self, cr, padded, styles):
+        """
+        It's possible to set the logger name using a "logger_name" key.
+        """
+        assert (
+            padded
+            + "["
+            + dev.BLUE
+            + styles.bright
+            + "yolo"
+            + styles.reset
+            + "] "
+        ) == cr(None, None, {"event": "test", "logger_name": "yolo"})
 
     def test_key_values(self, cr, styles, padded):
         """