Ignore processing param names, fixes #520

jedi/inference/dynamic_params.py

@@ -24,7 +24,7 @@ from jedi.inference.cache import inference_state_method_cache
 from jedi.inference import imports
 from jedi.inference.arguments import TreeArguments
 from jedi.inference.param import get_executed_param_names
-from jedi.inference.helpers import is_stdlib_path, is_big_annoying_library
+from jedi.inference.helpers import is_stdlib_path
 from jedi.inference.utils import to_list
 from jedi.inference.value import instance
 from jedi.inference.base_value import ValueSet, NO_VALUES
@@ -67,9 +67,6 @@ def dynamic_param_lookup(function_value, param_index):
     have to look for all calls to ``func`` to find out what ``foo`` possibly
     is.
     """
-    if is_big_annoying_library(function_value.parent_context):
-        return NO_VALUES
-
     funcdef = function_value.tree_node
 
     if not settings.dynamic_params:

jedi/inference/star_args.py

@@ -14,6 +14,7 @@ The signature here for bar should be `bar(b, c)` instead of bar(*args).
 from jedi._compatibility import Parameter
 from jedi.inference.utils import to_list
 from jedi.inference.names import ParamNameWrapper
+from jedi.inference.helpers import is_big_annoying_library
 
 
 def _iter_nodes_for_param(param_name):
@@ -93,6 +94,14 @@ def _remove_given_params(arguments, param_names):
 
 @to_list
 def process_params(param_names, star_count=3):  # default means both * and **
+    if param_names:
+        if is_big_annoying_library(param_names[0].parent_context):
+            # At first this feature can look innocent, but it does a lot of
+            # type inference in some cases, so we just ditch it.
+            for p in param_names:
+                yield p
+            return
+
     used_names = set()
     arg_callables = []
     kwarg_callables = []