Always use importlib.metadata

Author: abravalheri

src/pyproject_hooks/_in_process/_in_process.py

@@ -106,17 +106,14 @@ def find_spec(self, fullname, _path, _target=None):
 
         return spec
 
-    def find_distributions(self, context=None):
-        # Delayed import: Python 3.7 does not contain importlib.metadata
-        # If this method is being called it must be because
-        # `importlib.metadata`/`importlib_metadata` is available.
-        try:
-            from importlib_metadata import DistributionFinder, MetadataPathFinder
-        except ImportError:
+    if sys.version_info >= (3, 8):
+
+        def find_distributions(self, context=None):
+            # Delayed import: Python 3.7 does not contain importlib.metadata
             from importlib.metadata import DistributionFinder, MetadataPathFinder
 
-        context = DistributionFinder.Context(path=self.backend_path)
-        return MetadataPathFinder.find_distributions(context=context)
+            context = DistributionFinder.Context(path=self.backend_path)
+            return MetadataPathFinder.find_distributions(context=context)
 
 
 def _supported_features():