Fix entrypoints loading

requirements.in

@@ -11,3 +11,4 @@ python-dateutil
 pytz; python_version < '3.9'
 PyYAML
 requests
+importlib-metadata; python_version < '3.10'

src/pushsource/_impl/source.py

@@ -2,10 +2,15 @@
 import functools
 import logging
 import os
+import sys
 from threading import Lock
 from urllib import parse
 
-import pkg_resources
+if sys.version_info >= (3, 10):  # pragma: no cover
+    from importlib.metadata import entry_points
+else:
+    # for older python use non-standard compatible module
+    from importlib_metadata import entry_points
 
 from pushsource._impl.helpers import wait_exist
 
@@ -128,12 +133,11 @@ def __ensure_init(cls):
 
     @classmethod
     def __load_entrypoints(cls):
-        for ep in pkg_resources.iter_entry_points("pushsource"):
+        for ep in entry_points(group="pushsource"):
             # Note we're just trying to import the entry point's module, not
             # call any method.
-            # resolve vs load is for different versions of pkg_resources.
             # Result is assigned to a var to avoid a pylint warning.
-            _ = ep.resolve() if hasattr(ep, "resolve") else ep.load(require=False)
+            _ = ep.load()
 
     @classmethod
     def get(cls, source_url, **kwargs):

tests/source/test_source_entrypoint.py

@@ -19,26 +19,26 @@ def __init__(self):
             created1.append(True)
 
         @classmethod
-        def resolve(cls):
+        def load(cls):
             Source.register_backend("backend1", Backend1)
 
     class Backend2(object):
         def __init__(self):
             created2.append(True)
 
         @classmethod
-        def resolve(cls):
+        def load(cls):
             Source.register_backend("backend2", Backend2)
 
-    with patch("pkg_resources.iter_entry_points") as iter_ep:
-        iter_ep.return_value = [Backend1, Backend2]
+    with patch("pushsource._impl.source.entry_points") as ep:
+        ep.return_value = [Backend1, Backend2]
 
         # I should be able to get instances of those two backends
         assert Source.get("backend1:")
         assert Source.get("backend2:")
 
     # It should have found them via the expected entry point group
-    iter_ep.assert_called_once_with("pushsource")
+    ep.assert_called_once_with(group="pushsource")
 
     # Should have created one instance of each
     assert created1 == [True]