Remove requirements checking for dependencies

Change-Id: I4128994554a9291d5629e20774b1c5a91c4a58cc

3 files changed, 10 insertions, 2 deletions

diff --git a/docs/source/history.rst b/docs/source/history.rst
index 8183c86..a7a2958 100644
--- a/docs/source/history.rst
+++ b/docs/source/history.rst
@@ -2,6 +2,12 @@
  History
 =========
 
+dev
+
+- Disable requirements checking when loading plugins. This removes
+  protection against loading the wrong version of a plugin, or that
+  plugin's dependencies.
+
 0.13
 
 - Deprecate ``TestExtensionManager`` and replace with
diff --git a/stevedore/extension.py b/stevedore/extension.py
index 2e29a95..d9e054c 100644
--- a/stevedore/extension.py
+++ b/stevedore/extension.py
@@ -143,7 +143,9 @@ class ExtensionManager(object):
         return extensions
 
     def _load_one_plugin(self, ep, invoke_on_load, invoke_args, invoke_kwds):
-        plugin = ep.load()
+        # FIXME(dhellmann): This should be optional, controlled
+        # through the args to the constructor for the manager.
+        plugin = ep.load(require=False)
         if invoke_on_load:
             obj = plugin(*invoke_args, **invoke_kwds)
         else:
diff --git a/stevedore/tests/test_driver.py b/stevedore/tests/test_driver.py
index 70ec54c..e56d2c5 100644
--- a/stevedore/tests/test_driver.py
+++ b/stevedore/tests/test_driver.py
@@ -53,7 +53,7 @@ def test_multiple_drivers():
             pkg_resources.EntryPoint.parse('backend = pkg2:driver'),
         ]
         for ep in fep.return_value:
-            ep.load = lambda: 'pkg backend'
+            ep.load = lambda *args, **kwds: 'pkg backend'
         try:
             driver.DriverManager('stevedore.test.multiple_drivers', 'backend')
         except RuntimeError as err: