Check for callable entrypoint (#108)

* long description content type

* fix callable entrypoint in doc generation

* fix pytest registry callable

* update pre-commit

* update isort

* fix callable entrypoint docs

docs/scripts/gen_envs_display.py

@@ -10,13 +10,14 @@
     # REWRITE: for new environments that don't include Fetch and Shadow Hand (D4RL)
     # TODO: use same format for Fetch and Shadow Hand
     # The environment entrypoints have the following standard: `gymnasium_robotics.envs.env_type.env_name:EnvName`
-    all_envs = [
-        env_spec.entry_point
-        for env_spec in gym.registry.values()
-        if env_spec.entry_point.startswith("gymnasium_robotics.envs")
-        and "MujocoPy"
-        not in env_spec.entry_point  # Exclude Fetch and Shadow Hand environments
-    ]
+    all_envs = []
+    for env_spec in gym.envs.registry.values():
+        if isinstance(env_spec.entry_point, str):
+            if (
+                env_spec.entry_point.startswith("gymnasium_robotics.envs")
+                and "MujocoPy" not in env_spec.entry_point
+            ):
+                all_envs.append(env_spec)  # Exclude Fetch and Shadow Hand environments
     filtered_envs_by_type = {}
     for entry_point in all_envs:
         env_full_name = entry_point.split(":")

docs/scripts/gen_gifs.py

@@ -9,13 +9,14 @@
 
 # TODO: Add Fetch and Shadow Hand environments
 # The environment entrypoints have the following standard: `gymnasium_robotics.envs.env_type.env_name:EnvName`
-all_envs = [
-    env_spec
-    for env_spec in gym.registry.values()
-    if env_spec.entry_point.startswith("gymnasium_robotics.envs")
-    and "Mujoco"
-    not in env_spec.entry_point  # Exclude Fetch and Shadow Hand environments
-]
+all_envs = []
+for env_spec in gym.envs.registry.values():
+    if isinstance(env_spec.entry_point, str):
+        if (
+            env_spec.entry_point.startswith("gymnasium_robotics.envs")
+            and "MujocoPy" not in env_spec.entry_point
+        ):
+            all_envs.append(env_spec)  # Exclude Fetch and Shadow Hand environments
 
 # Keep latest version of environments
 filtered_envs_by_version = {}