Merge pull request #40723 from lzchen/logs

Include OpenCensus Python Log handling in AI docs for trace logs

Author: American-Dipper

articles/azure-monitor/app/asp-net-trace-logs.md

@@ -15,9 +15,9 @@ ms.date: 05/08/2019
 ms.author: mbullwin
 
 ---
-# Explore .NET/.NET Core trace logs in Application Insights
+# Explore .NET/.NET Core and Python trace logs in Application Insights
 
-Send diagnostic tracing logs for your ASP.NET/ASP.NET Core application from ILogger, NLog, log4Net, or System.Diagnostics.Trace to [Azure Application Insights][start]. You can then explore and search them. Those logs are merged with the other log files from your application, so you can identify traces that are associated with each user request and correlate them with other events and exception reports.
+Send diagnostic tracing logs for your ASP.NET/ASP.NET Core application from ILogger, NLog, log4Net, or System.Diagnostics.Trace to [Azure Application Insights][start]. For Python applications, send diagnostic tracing logs using AzureLogHandler in OpenCensus Python for Azure Monitor. You can then explore and search them. Those logs are merged with the other log files from your application, so you can identify traces that are associated with each user request and correlate them with other events and exception reports.
 
 > [!NOTE]
 > Do you need the log-capture module? It's a useful adapter for third-party loggers. But if you aren't already using NLog, log4Net, or System.Diagnostics.Trace, consider just calling [**Application Insights TrackTrace()**](../../azure-monitor/app/api-custom-events-metrics.md#tracktrace) directly.
@@ -152,6 +152,23 @@ You can also add a severity level to your message. And, like other telemetry, yo
 
 This would enable you to easily filter out in [Search][diagnostic] all the messages of a particular severity level that relate to a particular database.
 
+## AzureLogHandler for OpenCensus Python
+The Azure Monitor Log Handler allows you to export Python logs to Azure Monitor.
+
+Instrument your application with the [OpenCensus Python SDK](../../azure-monitor/app/opencensus-python.md) for Azure Monitor.
+
+This example shows how to send a warning level log to Azure Monitor.
+
+```python
+import logging
+
+from opencensus.ext.azure.log_exporter import AzureLogHandler
+
+logger = logging.getLogger(__name__)
+logger.addHandler(AzureLogHandler(connection_string='InstrumentationKey=<your-instrumentation_key-here>'))
+logger.warning('Hello, World!')
+```
+
 ## Explore your logs
 Run your app in debug mode or deploy it live.