diff --git a/jedi/evaluate/dynamic.py b/jedi/evaluate/dynamic.py
index ad65d6db..6ca429fe 100644
--- a/jedi/evaluate/dynamic.py
+++ b/jedi/evaluate/dynamic.py
@@ -89,7 +89,8 @@ def search_function_call(evaluator, func):
                     parent = parent.parent
 
                 trailer = None
-                if tree.is_node(parent, 'power'):
+                if tree.is_node(parent, 'power') or \
+                        tree.is_node(parent, 'atom_expr'):
                     for t in parent.children[1:]:
                         if t == '**':
                             break
diff --git a/jedi/evaluate/helpers.py b/jedi/evaluate/helpers.py
index 49edadbf..86eec876 100644
--- a/jedi/evaluate/helpers.py
+++ b/jedi/evaluate/helpers.py
@@ -88,7 +88,8 @@ def call_of_name(name, cut_own_trailer=False):
             return name
 
     power = par.parent
-    if tree.is_node(power, 'power') and power.children[0] != name \
+    if (tree.is_node(power, 'power') or tree.is_node(power, 'atom_expr')) \
+            and power.children[0] != name \
             and not (power.children[-2] == '**' and
                      name.start_pos > power.children[-1].start_pos):
         par = power
diff --git a/jedi/evaluate/iterable.py b/jedi/evaluate/iterable.py
index 0c6c20ce..21d4211d 100644
--- a/jedi/evaluate/iterable.py
+++ b/jedi/evaluate/iterable.py
@@ -528,7 +528,7 @@ def unpack_tuple_to_dict(evaluator, types, exprlist):
             analysis.add(evaluator, 'value-error-too-few-values', has_parts,
                          message="ValueError: need more than %s values to unpack" % n)
         return dct
-    elif exprlist.type == 'power':
+    elif exprlist.type == 'power' or exprlist.type == 'atom_expr':
         # Something like ``arr[x], var = ...``.
         # This is something that is not yet supported, would also be difficult
         # to write into a dict.
diff --git a/jedi/parser/tree.py b/jedi/parser/tree.py
index 7824a634..867d8cde 100644
--- a/jedi/parser/tree.py
+++ b/jedi/parser/tree.py
@@ -1342,7 +1342,7 @@ def _defined_names(current):
             names += _defined_names(child)
     elif is_node(current, 'atom'):
         names += _defined_names(current.children[1])
-    elif is_node(current, 'power'):
+    elif is_node(current, 'power') or is_node(current, 'atom_expr'):
         if current.children[-2] != '**':  # Just if there's no operation
             trailer = current.children[-1]
             if trailer.children[0] == '.':