Fix entry_points deprecation (#1233)

* Fix entry_points deprectaion

* Format code with black

* Undo change that shall be in a separate PR

Co-authored-by: felixdivo <[email protected]>

Author: felixdivo

can/interfaces/__init__.py

@@ -32,14 +32,16 @@
 try:
     from importlib.metadata import entry_points
 
-    entry = entry_points()
-    if "can.interface" in entry:
-        BACKENDS.update(
-            {
-                interface.name: tuple(interface.value.split(":"))
-                for interface in entry["can.interface"]
-            }
-        )
+    try:
+        entries = entry_points(group="can.interface")
+    except TypeError:
+        # Fallback for Python <3.10
+        # See https://docs.python.org/3/library/importlib.metadata.html#entry-points, "Compatibility Note"
+        entries = entry_points().get("can.interface", [])
+
+    BACKENDS.update(
+        {interface.name: tuple(interface.value.split(":")) for interface in entries}
+    )
 except ImportError:
     from pkg_resources import iter_entry_points