get rid off implicit flask tracing

hiphop/service.py

 from flask import Flask, redirect, request
 from jaeger_client import Config
-from flask_opentracing import FlaskTracer #, FlaskTracing
 import opentracing
 from opentracing.propagation import Format
 import requests
@@ -20,9 +19,7 @@ config = Config(config = {
     'reporter_batch_size': 1
 }, service_name=service)
 
-#tracer = config.initialize_tracer()
-tracer = FlaskTracer(config.initialize_tracer(), True, app)
-#tracing = FlaskTracing(tracer, True, app)
+tracer = config.initialize_tracer()
 
 @app.route('/')
 def index():
@@ -30,13 +27,13 @@ def index():
 
 @app.route('/hip')
 def hip():
-    print(request.headers)
+    print(request.headers)    
     r = ""
+    parent_span = tracer.extract(Format.HTTP_HEADERS, request.headers) if tier > 1 else tracer.start_span(operation_name="hip hop")
     try:
-        parent_span = tracer.extract(Format.HTTP_HEADERS, request.headers) if tier > 1 else tracer.get_span()
         print(f"{parent_span}")
         url = f"http://{service}-{tier + 1}/hip"
-        with opentracing.tracer.start_span(operation_name=url, child_of=parent_span) as span:
+        with tracer.start_span(operation_name=url, child_of=parent_span) as span:
             print(f"{span}")
             span.set_tag("http.url", url)
             headers = dict(request.headers)
@@ -50,6 +47,7 @@ def hip():
         print(ex)
         traceback.print_exc() 
         r = "END"
+    parent_span.finish()
     return f"hop-{ tier } -> { r }"
 
 app.run(host="0.0.0.0", port=80)