pyramid: Fix which package is the correct caller in _traced_init.

Author: Ken Robbins

Diff for: CHANGELOG.md

@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - `opentelemetry-instrumentation-wsgi` Capture custom request/response headers in span attributes
   ([#925])(https://github.com/open-telemetry/opentelemetry-python-contrib/pull/925)
+- `opentelemetry-instrumentation-pyramid` Fixed which package is the correct caller in _traced_init.
+  ([#830](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/830))
 
 ### Added
 

Diff for: instrumentation/opentelemetry-instrumentation-pyramid/src/opentelemetry/instrumentation/pyramid/__init__.py

@@ -134,10 +134,12 @@ def _traced_init(wrapped, instance, args, kwargs):
     # to find the calling package. So if we let the original `__init__`
     # function call it, our wrapper will mess things up.
     if not kwargs.get("package", None):
-        # Get the package for the third frame up from this one.
-        # Default is `level=2` which will give us the package from `wrapt`
-        # instead of the desired package (the caller)
-        kwargs["package"] = caller_package(level=3)
+        # Get the package for the 2nd frame up from this one.
+        # Default is `level=2` one level down (in Configurator.__init__).
+        # We want the 3rd level from _there_. Since we are already 1 level above,
+        # we need the 2nd level up from here, which will give us the package from
+        # `wrapt` instead of the desired package (the caller)
+        kwargs["package"] = caller_package(level=2)
 
     wrapped(*args, **kwargs)
     instance.include("opentelemetry.instrumentation.pyramid.callbacks")

Diff for: instrumentation/opentelemetry-instrumentation-pyramid/tests/test_automatic.py

@@ -79,6 +79,10 @@ def test_tween_list(self):
         span_list = self.memory_exporter.get_finished_spans()
         self.assertEqual(len(span_list), 1)
 
+    def test_registry_name_is_this_module(self):
+        config = Configurator()
+        self.assertEqual(config.registry.__name__, __name__.rsplit('.')[0])
+
 
 class TestWrappedWithOtherFramework(
     InstrumentationTest, TestBase, WsgiTestBase