Illegal access to span.kind

[soulmerge]

Describe your environment

No response

What happened?

Several instrumentation modules seem to access a kind property of Span objects, even though no such property exists in the Span ABC. The implementations seem to assume that opentelemetry-sdk is active, which uses its own Span class deriving from ReadableSpan, which in turn provides a kind property.

Here is an overview of modules making that erroneous assumption:

$ ag '\.kind\b' $(ag -l '\.kind\b' instrumentation/opentelemetry-instrumentation-* | grep -v '/tests/')
instrumentation/opentelemetry-instrumentation-asgi/src/opentelemetry/instrumentation/asgi/__init__.py
714:                    if current_span.kind == trace.SpanKind.SERVER:
870:            and server_span.kind == trace.SpanKind.SERVER

instrumentation/opentelemetry-instrumentation-django/src/opentelemetry/instrumentation/django/middleware/otel_middleware.py
259:                if span.is_recording() and span.kind == SpanKind.SERVER:
275:                if span.is_recording() and span.kind == SpanKind.SERVER:
369:                if span.is_recording() and span.kind == SpanKind.SERVER:
396:                if span.is_recording() and span.kind == SpanKind.SERVER:

instrumentation/opentelemetry-instrumentation-falcon/src/opentelemetry/instrumentation/falcon/__init__.py
356:            if span.is_recording() and span.kind == trace.SpanKind.SERVER:
488:            if span.is_recording() and span.kind == trace.SpanKind.SERVER:

instrumentation/opentelemetry-instrumentation-flask/src/opentelemetry/instrumentation/flask/__init__.py
374:                        and span.kind == trace.SpanKind.SERVER
461:            if span.is_recording() and span.kind == trace.SpanKind.SERVER:

instrumentation/opentelemetry-instrumentation-pyramid/src/opentelemetry/instrumentation/pyramid/callbacks.py
115:        if span.kind == trace.SpanKind.SERVER:
236:                if span.is_recording() and span.kind == trace.SpanKind.SERVER:

instrumentation/opentelemetry-instrumentation-tornado/src/opentelemetry/instrumentation/tornado/__init__.py
504:        if span.is_recording() and span.kind == trace.SpanKind.SERVER:
564:        if ctx.span.is_recording() and ctx.span.kind == trace.SpanKind.SERVER:

instrumentation/opentelemetry-instrumentation-wsgi/src/opentelemetry/instrumentation/wsgi/__init__.py
611:            if span.is_recording() and span.kind == trace.SpanKind.SERVER:
647:        if span.is_recording() and span.kind == trace.SpanKind.SERVER:

Steps to Reproduce

Expected Result

Actual Result

Additional context

No response

Would you like to implement a fix?

None