Use single call to importlib.metadata.entry_points for all groups

catkin_tools/commands/catkin.py

@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import argparse
-import functools
 import importlib.metadata
 import os
 import sys
@@ -31,20 +30,15 @@
 CATKIN_COMMAND_VERB_GROUP = 'catkin_tools.commands.catkin.verbs'
 
 
-@functools.lru_cache(maxsize=None)
-def _get_verb_entrypoints():
-    return list(entry_points(group=CATKIN_COMMAND_VERB_GROUP))
-
-
 def list_verbs():
     verbs = []
-    for entry_point in _get_verb_entrypoints():
+    for entry_point in entry_points(group=CATKIN_COMMAND_VERB_GROUP):
         verbs.append(entry_point.name)
     return verbs
 
 
 def load_verb_description(verb_name):
-    for entry_point in _get_verb_entrypoints():
+    for entry_point in entry_points(group=CATKIN_COMMAND_VERB_GROUP):
         if entry_point.name == verb_name:
             return entry_point.load()
 

catkin_tools/utils.py

@@ -12,17 +12,21 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import functools
 import os
 import sys
 
-if sys.version_info >= (3, 10):
-    from importlib.metadata import entry_points
-else:
-    import importlib.metadata
 
-    def entry_points(*, group):
-        for ep in importlib.metadata.entry_points().get(group, []):
-            yield ep
+def entry_points(*, group):
+    @functools.lru_cache(maxsize=None)
+    def _entry_points():
+        from importlib.metadata import entry_points
+        return entry_points()
+
+    if sys.version_info >= (3, 10):
+        return _entry_points().select(group=group)
+    else:
+        return _entry_points().get(group, [])
 
 
 def which(program):