A few minor fixes

docs/index.rst

@@ -777,7 +777,9 @@ using the :py:meth:`pluggy._HookCaller.call_historic()` method:
 
 
     # call with history; no results returned
-    pm.hook.myhook.call_historic(config=config, args=sys.argv, result_callback=callback)
+    pm.hook.myhook.call_historic(
+        kwargs={"config": config, "args": sys.argv}, result_callback=callback
+    )
 
     # ... more of our program ...
 

src/pluggy/hooks.py

@@ -161,7 +161,7 @@ def varnames(func):
         try:
             func = getattr(func, "__call__", func)
         except Exception:
-            return ()
+            return (), ()
 
     try:  # func MUST be a function or method here or we won't parse any args
         spec = _getargspec(func)
@@ -171,9 +171,9 @@ def varnames(func):
     args, defaults = tuple(spec.args), spec.defaults
     if defaults:
         index = -len(defaults)
-        args, defaults = args[:index], tuple(args[index:])
+        args, kwargs = args[:index], tuple(args[index:])
     else:
-        defaults = ()
+        kwargs = ()
 
     # strip any implicit instance arg
     # pypy3 uses "obj" instead of "self" for default dunder methods
@@ -185,10 +185,10 @@ def varnames(func):
             args = args[1:]
 
     try:
-        cache["_varnames"] = args, defaults
+        cache["_varnames"] = args, kwargs
     except TypeError:
         pass
-    return args, defaults
+    return args, kwargs
 
 
 class _HookRelay(object):

testing/test_multicall.py

@@ -1,22 +1,13 @@
 import pytest
 from pluggy import HookCallError, HookspecMarker, HookimplMarker
 from pluggy.hooks import HookImpl
-from pluggy.callers import _multicall, _legacymulticall, _LegacyMultiCall
+from pluggy.callers import _multicall, _legacymulticall
 
 
 hookspec = HookspecMarker("example")
 hookimpl = HookimplMarker("example")
 
 
-def test_uses_copy_of_methods():
-    out = [lambda: 42]
-    mc = _LegacyMultiCall(out, {})
-    repr(mc)
-    out[:] = []
-    res = mc.execute()
-    return res == 42
-
-
 def MC(methods, kwargs, firstresult=False):
     caller = _multicall
     hookfuncs = []