Eliminate module lookup

CHANGELOG.md

@@ -1,51 +1,57 @@
-# Revision History
+# 1.2.3 (2019-01-08)
 
-## 1.2.1 (2018-12-10)
+- Sped up logging by eliminating module lookup.
+
+# 1.2.2 (2019-01-08)
+
+- Sped up logging by eliminating source file loading.
+
+# 1.2.1 (2018-12-10)
 
 - Fixed missing `%(relpath)s` format for `pytest`.
 
-## 1.2 (2018-12-09)
+# 1.2 (2018-12-09)
 
 - Fixed bug where logger name is unset when logging during imports.
 
-## 1.1 (2018-10-26)
+# 1.1 (2018-10-26)
 
 - Added `%(relpath)s` logging format.
 - Added `verbosity` as `init()` option to work with Django admin commands.
 
-## 1.0 (2018-09-27)
+# 1.0 (2018-09-27)
 
 - Initial stable release.
 
-## 0.5 (2018-09-07)
+# 0.5 (2018-09-07)
 
 - Disabled automatic logging configuration when invoked by `pytest`.
 
-## 0.4 (2018-4-28)
+# 0.4 (2018-4-28)
 
 - Added `reset=True` as `init()` option to replace all existing logging handlers.
 - Added `exception` logging API.
 - Added convenience alias: `log.c`, `log.exc`.
 
-## 0.3.1 (2018-03-30)
+# 0.3.1 (2018-03-30)
 
 - Fixed bug where records were written for disabled levels.
 
-## 0.3 (2018-03-15)
+# 0.3 (2018-03-15)
 
 - Exposed `logging` level constants on the `log` package.
 - Added `log.WARN` as an alias of `log.WARNING`.
 
-## 0.2.1 (2018-03-04)
+# 0.2.1 (2018-03-04)
 
 - Removed the Python version check on installation.
 
-## 0.2 (2018-03-03)
+# 0.2 (2018-03-03)
 
 - Added method to force logging format: `log.init(format="...")`
 - Added method to silenced named loggers: `log.silence('requests', allow_error=True)`
 - Added convenience aliases: `log.d`, `log.i`, `log.w`, `log.e`
 
-## 0.1 (2018-03-03)
+# 0.1 (2018-03-03)
 
  - Initial release.

log/utils.py

@@ -14,19 +14,19 @@ def create_logger_record(level, message, *args, exc_info=None, **kwargs):
     elif not state.initialized:
         helpers.init()
 
-    frame, filename, lineno, *_ = inspect.stack(0)[3]
+    frame = inspect.currentframe().f_back.f_back.f_back
 
-    module = inspect.getmodule(frame)
+    module_name = frame.f_globals['__name__']
 
-    logger = logging.getLogger(module.__name__)
+    logger = logging.getLogger(module_name)
     if not logger.isEnabledFor(level):
         return
 
     record = logger.makeRecord(
-        module.__name__,
+        module_name,
         level,
-        fn=filename,
-        lno=lineno,
+        fn=frame.f_globals['__file__'],
+        lno=frame.f_lineno,
         msg=message,
         args=args,
         exc_info=exc_info,

pyproject.toml

@@ -1,7 +1,7 @@
 [tool.poetry]
 
 name = "minilog"
-version = "1.2.2"
+version = "1.2.3"
 description = "Minimalistic wrapper for Python logging."
 
 license = "MIT"