Switch to importlib.metadata to list entry points (#264)

Author: fcollonval

jupyterlab_server/translation_utils.py

@@ -14,9 +14,14 @@
 from typing import Dict, Pattern, Tuple
 
 import babel
-import entrypoints
 from packaging.version import parse as parse_version
 
+# See compatibility note on `group` keyword in https://docs.python.org/3/library/importlib.metadata.html#entry-points
+if sys.version_info < (3, 10):
+    from importlib_metadata import entry_points
+else:
+    from importlib.metadata import entry_points
+
 # Entry points
 JUPYTERLAB_LANGUAGEPACK_ENTRY = "jupyterlab.languagepack"
 JUPYTERLAB_LOCALE_ENTRY = "jupyterlab.locale"
@@ -86,7 +91,7 @@ def _get_installed_language_pack_locales():
     """
     data = {}
     messages = []
-    for entry_point in entrypoints.get_group_all(JUPYTERLAB_LANGUAGEPACK_ENTRY):
+    for entry_point in entry_points(group=JUPYTERLAB_LANGUAGEPACK_ENTRY):
         try:
             data[entry_point.name] = os.path.dirname(entry_point.load().__file__)
         except Exception:
@@ -115,7 +120,7 @@ def _get_installed_package_locales():
     """
     data = {}
     messages = []
-    for entry_point in entrypoints.get_group_all(JUPYTERLAB_LOCALE_ENTRY):
+    for entry_point in entry_points(group=JUPYTERLAB_LOCALE_ENTRY):
         try:
             data[entry_point.name] = os.path.dirname(entry_point.load().__file__)
         except Exception:

setup.cfg

@@ -36,7 +36,7 @@ packages = find:
 python_requires = >=3.7
 install_requires =
     babel
-    entrypoints>=0.2.2
+    importlib_metadata>=3.6;python_version<"3.10"
     jinja2>=3.0.3
     json5
     jsonschema>=3.0.1