Python sample does not work with open telemetry.

[RudyCo]

Type of issue

Other (describe below)

Description

Edit by adegeo: Convert issue to doc issue template

Hi,
The Python sample from the official documentation does not work with open telemetry.
Error I see in the console log is...

WARNING:opentelemetry.exporter.otlp.proto.grpc.exporter:Transient error StatusCode.UNAVAILABLE encountered while exporting logs to localhost:21171, retrying in 16s.
{
   "body": "Transient error StatusCode.UNAVAILABLE encountered while exporting logs to localhost:21171, retrying in 16s.",
   "severity_number": 13,
   "severity_text": "WARN",
   "attributes": {
       "code.filepath": "C:\\source\\temp\\aspire\\PythonSample\\hello-python\\.venv\\Lib\\site-packages\\opentelemetry\\exporter\\otlp\\proto\\grpc\\exporter.py",
       "code.function": "_export",
       "code.lineno": 328
   },
   "dropped_attributes": 0,
   "timestamp": "2025-04-11T14:51:12.652936Z",
   "observed_timestamp": "2025-04-11T14:51:12.653054Z",
   "trace_id": "0x00000000000000000000000000000000",
   "span_id": "0x0000000000000000",
   "trace_flags": 0,
   "resource": {
       "attributes": {
           "telemetry.sdk.language": "python",
           "telemetry.sdk.name": "opentelemetry",
           "telemetry.sdk.version": "1.32.0",
           "service.instance.id": "xychgshs",
           "service.name": "hello-python",
           "telemetry.auto.version": "0.53b0"
       },
       "schema_url": ""
   }
}

Page URL

https://learn.microsoft.com/en-us/dotnet/aspire/get-started/build-aspire-apps-with-python?tabs=bash

Content source URL

https://github.com/dotnet/docs-aspire/blob/main/docs/get-started/build-aspire-apps-with-python.md

Document Version Independent Id

a7f23daf-24f1-a0ae-c376-ea14f6a3c6df

Platform Id

7575cde4-e299-4379-f156-b8f3a3a7a28a

Article author

IEvangelist

Related Issues

---

Associated WorkItem - 421560

[adegeo]

Greetings @RudyCo !

I think I figured it out. You need to run the HTTP launch profile, not the default HTTPS. I replicated your problem and this solved it for me. Can you let me know if that fixes it for you? I'll get the docs updated.

[RudyCo]

The thing is I must run the HTTPS profile because my front-end application is an Excel Add-in and using HTTP is mandatory.