fix(sdk): improve package name detection with type hints and null safety (#2618)

Author: doronkopit5

packages/traceloop-sdk/traceloop/sdk/utils/package_check.py

@@ -1,20 +1,14 @@
-from importlib.metadata import distributions
+from importlib.metadata import Distribution, distributions
 
 
-def _get_package_name(dist):
-    # Try both 'Name' and 'name' keys to handle different metadata formats
-    if hasattr(dist, 'metadata') and dist.metadata is not None:
-        for key in ('Name', 'name'):
-            try:
-                return dist.metadata[key].lower()
-            except (KeyError, AttributeError):
-                continue
+def _get_package_name(dist: Distribution) -> str | None:
+    try:
+        return dist.name.lower()
+    except (KeyError, AttributeError):
+        return None
 
-    # If metadata is missing or neither key exists, use the distribution name directly
-    return dist.name.lower()
 
-
-installed_packages = {_get_package_name(dist) for dist in distributions()}
+installed_packages = {name for dist in distributions() if (name := _get_package_name(dist)) is not None}
 
 
 def is_package_installed(package_name: str) -> bool: