Removed the name attribute from lambda. It doesn't exist so don't fake it.

jedi/evaluate/docstrings.py

@@ -192,6 +192,9 @@ 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':
+        return set()
+
     types = eval_docstring(func.raw_doc)
     if func.name.value == '__init__':
         cls = search_ancestor(func, 'classdef')

jedi/evaluate/representation.py

@@ -221,6 +221,20 @@ class ClassContext(use_metaclass(CachedMetaClass, context.TreeContext)):
         return ContextName(self, self.tree_node.name)
 
 
+class LambdaName(AbstractNameDefinition):
+    string_name = '<lambda>'
+
+    def __init__(self, lambda_context):
+        self._lambda_context = lambda_context
+        self.parent_context = lambda_context.parent_context
+
+    def start_pos(self):
+        return self._lambda_context.tree_node.start_pos
+
+    def infer(self):
+        return set([self._lambda_context])
+
+
 class FunctionContext(use_metaclass(CachedMetaClass, context.TreeContext)):
     """
     Needed because of decorators. Decorators are evaluated here.
@@ -276,6 +290,8 @@ class FunctionContext(use_metaclass(CachedMetaClass, context.TreeContext)):
 
     @property
     def name(self):
+        if self.tree_node.type == 'lambda':
+            return LambdaName(self)
         return ContextName(self, self.tree_node.name)
 
     def get_param_names(self):

jedi/parser/python/tree.py

@@ -609,7 +609,8 @@ class Function(ClassOrFunc):
 
         :rtype: str
         """
-        func_name = func_name or self.name
+        # Lambdas have no name.
+        func_name = func_name or getattr(self, 'name', '<lambda>')
         code = unicode(func_name) + self._get_paramlist_code()
         return '\n'.join(textwrap.wrap(code, width))
 
@@ -639,13 +640,12 @@ class Lambda(Function):
     def __init__(self, children):
         # We don't want to call the Function constructor, call its parent.
         super(Function, self).__init__(children)
-        lst = self.children[1:-2]  # Everything between `lambda` and the `:` operator is a parameter.
-        self.children[1:-2] = _create_params(self, lst)
+        # Everything between `lambda` and the `:` operator is a parameter.
+        self.children[1:-2] = _create_params(self, self.children[1:-2])
 
     @property
     def name(self):
-        # Borrow the position of the <Keyword: lambda> AST node.
-        return Name('<lambda>', self.children[0].start_pos)
+        raise AttributeError("lambda is not named.")
 
     def _get_paramlist_code(self):
         return '(' + ''.join(param.get_code() for param in self.params).strip() + ')'
@@ -664,6 +664,7 @@ class Lambda(Function):
 
     @property
     def yields(self):
+        # TODO rename
         return []
 
     def __repr__(self):

test/test_parser/test_parser_tree.py

@@ -36,8 +36,9 @@ class TestsFunctionAndLambdaParsing(object):
         return request.keywords['expected']
 
     def test_name(self, node, expected):
-        assert isinstance(node.name, tree.Name)
-        assert unicode(node.name) == u(expected['name'])
+        if node.type != 'lambda':
+            assert isinstance(node.name, tree.Name)
+            assert unicode(node.name) == u(expected['name'])
 
     def test_params(self, node, expected):
         assert isinstance(node.params, list)