logging train

Author: alisx

taiyangxue/README.md

@@ -1,5 +1,6 @@
 # Python 代码实例
 
+- [logging-train](https://github.com/JustDoPython/python-examples/tree/master/taiyangxue/logging-train) : 神器 logging，你真的了解吗？
 - [split-video](https://github.com/JustDoPython/python-examples/tree/master/taiyangxue/split-video) : 神器 ffmpeg —— 实现短视频批量化操作
 - [pypandoc](https://github.com/JustDoPython/python-examples/tree/master/taiyangxue/pypandoc) : 神器 Pypandoc —— 实现电子书自由
 - [python-thread](https://github.com/JustDoPython/python-examples/tree/master/taiyangxue/python-thread) : 这么一搞，再也不怕线程打架了

taiyangxue/logging-train/foo/bar/barmod.py

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+import logging
+
+logger = logging.getLogger(__name__)
+
+def fun():
+    logger.warning("bar fun warning")

taiyangxue/logging-train/foo/foomod.py

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+import logging
+print("__name__", __name__)
+logger = logging.getLogger(__name__)
+
+def fun():
+    logger.warning("foo fun warning")

taiyangxue/logging-train/m.py

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+import logging
+
+#logging.warning("m.py info")
+logger = logging.getLogger(f'mylog.{__name__}')
+def fun():
+    logger.warning("fun value 10")
+    return 10
+    
+def fun2():
+    logger.info("fun2")

taiyangxue/logging-train/test.py

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+import logging
+import m
+from foo.foomod import fun as foofun
+from foo.bar import barmod
+
+rootlogger = logging.getLogger()
+root_hdl = logging.StreamHandler()
+root_hdl.setLevel(level=logging.DEBUG)
+rootlogger.addHandler(root_hdl)
+logging.basicConfig(level=logging.DEBUG, format="%(name)s-%(message)s")
+rootlogger.debug("logging debug")
+rootlogger.info("logging info")
+rootlogger.warning("logging warning")
+rootlogger.error("logging error")
+rootlogger.critical("logging critical")
+
+logger = logging.getLogger('foo')
+logger.warning(logger.hasHandlers())
+fmt = logging.Formatter("%(asctime)s-%(filename)s-%(name)s-%(message)s")
+hdl = logging.StreamHandler()
+hdl.setFormatter(fmt)
+logger.addHandler(hdl)
+logger.warning(len(logger.handlers))
+logger.warning("logger debug")
+
+print(rootlogger.debug == logging.getLogger().debug)
+
+print(m.fun())
+m.fun2()
+barmod.fun()
+foofun()