Drop pkg resources usage (#84)

Co-authored-by: Michael Howitz <[email protected]>

Author: gforcada

CHANGES.rst

@@ -5,8 +5,7 @@
 7.3 (unreleased)
 ================
 
-- Nothing changed yet.
-
+- Replace `pkg_resources` with `importlib.metadata`.
 
 7.2 (2024-12-19)
 ================

docs/conf.py

@@ -20,12 +20,11 @@
 # sys.path.insert(0, os.path.abspath('.'))
 import os
 import sys
-
-import pkg_resources
+from importlib.metadata import distribution
 
 
 sys.path.append(os.path.abspath('../src'))
-rqmt = pkg_resources.require('zope.publisher')[0]
+rqmt = distribution("zope.publisher")
 
 # -- General configuration ------------------------------------------------
 

src/zope/publisher/paste.py

@@ -12,13 +12,15 @@
 #
 ##############################################################################
 
-import pkg_resources
+import sys
 
 import zope.publisher.browser
 import zope.publisher.http
 import zope.publisher.publish
 
 
+PY39 = sys.version_info[0:2] < (3, 10)
+
 browser_methods = {'GET', 'HEAD', 'POST'}
 
 
@@ -68,4 +70,13 @@ def get_egg(name, group):
     else:
         egg, entry_point = name, 'default'
 
-    return pkg_resources.load_entry_point(egg, group, entry_point)
+    if PY39:
+        import pkg_resources
+
+        return pkg_resources.load_entry_point(egg, group, entry_point)
+    else:
+        from importlib.metadata import entry_points
+
+        (entry_point,) = entry_points().select(group=group, name=entry_point)
+
+    return entry_point.load()