The Lambda type should be lambdef, not lambda. Use the grammar types.

jedi/evaluate/__init__.py

@@ -280,7 +280,7 @@ class Evaluator(object):
             if element.value in ('False', 'True', 'None'):
                 types.add(compiled.builtin_from_name(self, element.value))
             # else: print e.g. could be evaluated like this in Python 2.7
-        elif typ == 'lambda':
+        elif typ == 'lambdef':
             types = set([er.FunctionContext(self, context, element)])
         elif typ == 'expr_stmt':
             types = self.eval_statement(context, element)
@@ -337,7 +337,7 @@ class Evaluator(object):
             # This is the first global lookup.
             stmt = atom.get_definition()
             if stmt.type == 'comp_for':
-                stmt = tree.search_ancestor(stmt, ('expr_stmt', 'lambda', 'funcdef', 'classdef'))
+                stmt = tree.search_ancestor(stmt, ('expr_stmt', 'lambdef', 'funcdef', 'classdef'))
             if stmt is None or stmt.type != 'expr_stmt':
                 # We only need to adjust the start_pos for statements, because
                 # there the name cannot be used.
@@ -551,7 +551,7 @@ class Evaluator(object):
             if scope_node == base_node:
                 return base_context
 
-            is_funcdef = scope_node.type in ('funcdef', 'lambda')
+            is_funcdef = scope_node.type in ('funcdef', 'lambdef')
             parent_scope = scope_node.get_parent_scope()
             parent_context = from_scope_node(parent_scope, child_is_funcdef=is_funcdef)
 

jedi/evaluate/docstrings.py

@@ -192,7 +192,7 @@ def follow_param(module_context, param):
                 for p in _evaluate_for_statement_string(module_context, param_str)]
         )
     func = param.get_parent_function()
-    if func.type == 'lambda':
+    if func.type == 'lambdef':
         return set()
 
     types = eval_docstring(func.raw_doc)

jedi/evaluate/representation.py

@@ -290,7 +290,7 @@ class FunctionContext(use_metaclass(CachedMetaClass, context.TreeContext)):
 
     @property
     def name(self):
-        if self.tree_node.type == 'lambda':
+        if self.tree_node.type == 'lambdef':
             return LambdaName(self)
         return ContextName(self, self.tree_node.name)
 
@@ -320,7 +320,7 @@ class FunctionExecutionContext(context.TreeContext):
     @recursion.execution_recursion_decorator()
     def get_return_values(self, check_yields=False):
         funcdef = self.tree_node
-        if funcdef.type == 'lambda':
+        if funcdef.type == 'lambdef':
             return self.evaluator.eval_element(self, funcdef.children[-1])
 
         if check_yields:

jedi/parser/python/tree.py

@@ -634,7 +634,7 @@ class Lambda(Function):
       -2) <Operator: :>
       -1) Node() representing body
     """
-    type = 'lambda'
+    type = 'lambdef'
     __slots__ = ()
 
     def __init__(self, children):
@@ -1084,7 +1084,7 @@ class Param(PythonBaseNode):
         return index - 1
 
     def get_parent_function(self):
-        return search_ancestor(self, ('funcdef', 'lambda'))
+        return search_ancestor(self, ('funcdef', 'lambdef'))
 
     def get_description(self):
         # TODO Remove?

test/test_parser/test_parser_tree.py

@@ -36,7 +36,7 @@ class TestsFunctionAndLambdaParsing(object):
         return request.keywords['expected']
 
     def test_name(self, node, expected):
-        if node.type != 'lambda':
+        if node.type != 'lambdef':
             assert isinstance(node.name, tree.Name)
             assert unicode(node.name) == u(expected['name'])