ConsoleSpanExporter export is ambiguous/incomplete

[lizthegrey]

Is your feature request related to a problem?
Using the ConsoleSpanExporter(), we see Span(...)Span(...) with no newlines or other delimeters separating them, and attributes not reported.

Describe the solution you'd like

Span(name="fibHandler", context=SpanContext(trace_id=0xe15c7cbba84447f39c83e20cb4cd6cf7, span_id=0xbfe12c3731d17d9a, trace_state={}), kind=SpanKind.SERVER, attributes={[...]}, parent=SpanContext(trace_id=0xe15c7cbba84447f39c83e20cb4cd6cf7, span_id=0xd011389d33b829dd, trace_state={}), start_time=2020-03-12T08:56:43.718479Z, end_time=2020-03-12T08:56:43.729221Z),
Span(name="fibHandlerInternal",[...]),
Span(name="fibHandlerInternal",[...]),

Additional context
This is for clarity in the Intro to OTel workshop.

[mauriciovasquezbernal]

Hi @lizthegrey,

The missing line break was fixed in #455, however this is not available in any released version yet.

About the missing attributes, we are also missing links and events and their attributes, probably including them will make it very difficult to read the output.

By the way, the console exporter supports a custom formatter, in case it can help you:

opentelemetry-python/opentelemetry-sdk/src/opentelemetry/sdk/trace/export/__init__.py

Line 274 in dd8521e

formatter: typing.Callable[[Span], str] = lambda span: str(span)

[lizthegrey]

Thanks, it does help. May I make the suggestion that at least counting number of links, attributes, and events, may be helpful even if they're not displayed in full? That way someone can tell that adding attributes has had the desired effect.