Python basic span lifecycle

server.py

# Start the span with a name and a parent span
child = tracer.start_span("my_operation", parent=parent)

try:
   # pass the span around as a parameter
   do_work(span=child)
finally:
   # End the span, which measures the span duration and
   # triggers the span data to be exported.
   # WARNING: failing to end a span will create a leak.
   child.end()