Switch from pkg_resources to importlib.metadata in app.py, refs #2057

datasette/app.py

@@ -8,11 +8,11 @@ import functools
 import glob
 import hashlib
 import httpx
+import importlib.metadata
 import inspect
 from itsdangerous import BadSignature
 import json
 import os
-import pkg_resources
 import re
 import secrets
 import sys
@@ -1118,9 +1118,9 @@ class Datasette:
         if using_pysqlite3:
             for package in ("pysqlite3", "pysqlite3-binary"):
                 try:
-                    info["pysqlite3"] = pkg_resources.get_distribution(package).version
+                    info["pysqlite3"] = importlib.metadata.version(package)
                     break
-                except pkg_resources.DistributionNotFound:
+                except importlib.metadata.PackageNotFoundError:
                     pass
         return info
 

tests/test_plugins.py

@@ -1264,3 +1264,25 @@ async def test_hook_actors_from_ids():
         }
     finally:
         pm.unregister(name="ReturnNothingPlugin")
+
+
+@pytest.mark.asyncio
+async def test_plugin_is_installed():
+    datasette = Datasette(memory=True)
+
+    class DummyPlugin:
+        __name__ = "DummyPlugin"
+
+        @hookimpl
+        def actors_from_ids(self, datasette, actor_ids):
+            return {}
+
+    try:
+        pm.register(DummyPlugin(), name="DummyPlugin")
+        response = await datasette.client.get("/-/plugins.json")
+        assert response.status_code == 200
+        installed_plugins = {p["name"] for p in response.json()}
+        assert "DummyPlugin" in installed_plugins
+
+    finally:
+        pm.unregister(name="DummyPlugin")