Small issue with relative imports that don't contain a path after from.

jedi/evaluate/helpers.py

@@ -345,6 +345,9 @@ class FakeImport(pr.Import):
         self._level = level
         self.name = name
 
+    def aliases(self):
+        return {}
+
     @property
     def level(self):
         return self._level

jedi/parser/representation.py

@@ -1145,9 +1145,11 @@ class ImportFrom(Import):
         for n in self.children[1:]:
             if n not in ('.', '...'):
                 break
-        if is_node(n, 'dotted_name'):
+        if is_node(n, 'dotted_name'):  # from x.y import
             dotted = n.children[::2]
-        else:
+        elif n == 'import':  # from . import
+            dotted = []
+        else:  # from x import
             dotted = [n]
         return [dotted + [name] for name, alias in self._as_name_tuples()]
 

test/completion/imports.py

@@ -211,9 +211,6 @@ from . import datetime as mod1
 #? []
 mod1.
 
-#? str()
-imp_tree.a
-
 # self import
 # this can cause recursions
 from imports import *