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

1 files changed, 27 insertions, 27 deletions

diff --git a/contrib/python/attrs/attr/converters.py b/contrib/python/attrs/attr/converters.py
index dd1441ce4c..2777db6d0a 100644
--- a/contrib/python/attrs/attr/converters.py
+++ b/contrib/python/attrs/attr/converters.py
@@ -4,15 +4,15 @@ Commonly useful converters.
 
 from __future__ import absolute_import, division, print_function
 
-from ._compat import PY2 
+from ._compat import PY2
 from ._make import NOTHING, Factory, pipe
 
 
-if not PY2: 
-    import inspect 
-    import typing 
- 
- 
+if not PY2:
+    import inspect
+    import typing
+
+
 __all__ = [
     "pipe",
     "optional",
@@ -25,9 +25,9 @@ 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. 
- 
+    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.
 
@@ -39,23 +39,23 @@ def optional(converter):
             return None
         return converter(val)
 
-    if not PY2: 
-        sig = None 
-        try: 
-            sig = inspect.signature(converter) 
-        except (ValueError, TypeError):  # inspect failed 
-            pass 
-        if sig: 
-            params = list(sig.parameters.values()) 
-            if params and params[0].annotation is not inspect.Parameter.empty: 
-                optional_converter.__annotations__["val"] = typing.Optional[ 
-                    params[0].annotation 
-                ] 
-            if sig.return_annotation is not inspect.Signature.empty: 
-                optional_converter.__annotations__["return"] = typing.Optional[ 
-                    sig.return_annotation 
-                ] 
- 
+    if not PY2:
+        sig = None
+        try:
+            sig = inspect.signature(converter)
+        except (ValueError, TypeError):  # inspect failed
+            pass
+        if sig:
+            params = list(sig.parameters.values())
+            if params and params[0].annotation is not inspect.Parameter.empty:
+                optional_converter.__annotations__["val"] = typing.Optional[
+                    params[0].annotation
+                ]
+            if sig.return_annotation is not inspect.Signature.empty:
+                optional_converter.__annotations__["return"] = typing.Optional[
+                    sig.return_annotation
+                ]
+
     return optional_converter
 
 
@@ -67,7 +67,7 @@ def default_if_none(default=NOTHING, factory=None):
     :param default: Value to be used if ``None`` is passed. Passing an instance
        of `attr.Factory` is supported, however the ``takes_self`` option
        is *not*.
-    :param callable factory: A callable that takes no parameters whose result 
+    :param callable factory: A callable that takes no parameters whose result
        is used if ``None`` is passed.
 
     :raises TypeError: If **neither** *default* or *factory* is passed.