Restoring authorship annotation for <orivej@yandex-team.ru>. Commit 1 of 2.

1 files changed, 23 insertions, 23 deletions

diff --git a/contrib/python/attrs/attr/converters.py b/contrib/python/attrs/attr/converters.py
index 2777db6d0a..d36652e31c 100644
--- a/contrib/python/attrs/attr/converters.py
+++ b/contrib/python/attrs/attr/converters.py
@@ -1,12 +1,12 @@
-"""
-Commonly useful converters.
-"""
-
-from __future__ import absolute_import, division, print_function
-
+""" 
+Commonly useful converters. 
+""" 
+ 
+from __future__ import absolute_import, division, print_function 
+ 
 from ._compat import PY2
 from ._make import NOTHING, Factory, pipe
-
+ 
 
 if not PY2:
     import inspect
@@ -20,25 +20,25 @@ __all__ = [
 ]
 
 
-def optional(converter):
-    """
-    A converter that allows an attribute to be optional. An optional attribute
-    is one which can be set to ``None``.
-
+def optional(converter): 
+    """ 
+    A converter that allows an attribute to be optional. An optional attribute 
+    is one which can be set to ``None``. 
+ 
     Type annotations will be inferred from the wrapped converter's, if it
     has any.
 
-    :param callable converter: the converter that is used for non-``None``
-        values.
-
+    :param callable converter: the converter that is used for non-``None`` 
+        values. 
+ 
     .. versionadded:: 17.1.0
-    """
-
-    def optional_converter(val):
-        if val is None:
-            return None
-        return converter(val)
-
+    """ 
+ 
+    def optional_converter(val): 
+        if val is None: 
+            return None 
+        return converter(val) 
+ 
     if not PY2:
         sig = None
         try:
@@ -56,7 +56,7 @@ def optional(converter):
                     sig.return_annotation
                 ]
 
-    return optional_converter
+    return optional_converter 
 
 
 def default_if_none(default=NOTHING, factory=None):