diff --git a/jedi/_compatibility.py b/jedi/_compatibility.py
index 7ee82160..809f64f1 100644
--- a/jedi/_compatibility.py
+++ b/jedi/_compatibility.py
@@ -71,7 +71,7 @@ def find_module_py33(string, path=None, loader=None, fullname=None):
             raise ImportError("Originally  " + repr(e))
 
     if loader is None:
-        raise ImportError("Couldn't find a loader for {0}".format(string))
+        raise ImportError("Couldn't find a loader for {}".format(string))
 
     try:
         is_package = loader.is_package(string)
@@ -135,7 +135,7 @@ def find_module_pre_py33(string, path=None, fullname=None):
                     return (file, module_path, is_package)
             except ImportError:
                 pass
-    raise ImportError("No module named {0}".format(string))
+    raise ImportError("No module named {}".format(string))
 
 
 find_module = find_module_py33 if is_py33 else find_module_pre_py33
diff --git a/jedi/evaluate/docstrings.py b/jedi/evaluate/docstrings.py
index f9c11412..4bbb0a06 100644
--- a/jedi/evaluate/docstrings.py
+++ b/jedi/evaluate/docstrings.py
@@ -179,7 +179,7 @@ def _evaluate_for_statement_string(module_context, string):
         Need this docstring so that if the below part is not valid Python this
         is still a function.
         '''
-    {0}
+    {}
     """))
     if string is None:
         return []