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

1 files changed, 74 insertions, 74 deletions

diff --git a/contrib/python/ipython/py3/IPython/utils/contexts.py b/contrib/python/ipython/py3/IPython/utils/contexts.py
index 4d379b0eda..214abace2c 100644
--- a/contrib/python/ipython/py3/IPython/utils/contexts.py
+++ b/contrib/python/ipython/py3/IPython/utils/contexts.py
@@ -1,74 +1,74 @@
-# encoding: utf-8
-"""Miscellaneous context managers.
-"""
-
-import warnings
-
-# Copyright (c) IPython Development Team.
-# Distributed under the terms of the Modified BSD License.
-
-class preserve_keys(object):
-    """Preserve a set of keys in a dictionary.
-
-    Upon entering the context manager the current values of the keys
-    will be saved. Upon exiting, the dictionary will be updated to
-    restore the original value of the preserved keys. Preserved keys
-    which did not exist when entering the context manager will be
-    deleted.
-
-    Examples
-    --------
-
-    >>> d = {'a': 1, 'b': 2, 'c': 3}
-    >>> with preserve_keys(d, 'b', 'c', 'd'):
-    ...     del d['a']
-    ...     del d['b']      # will be reset to 2
-    ...     d['c'] = None   # will be reset to 3
-    ...     d['d'] = 4      # will be deleted
-    ...     d['e'] = 5
-    ...     print(sorted(d.items()))
-    ...
-    [('c', None), ('d', 4), ('e', 5)]
-    >>> print(sorted(d.items()))
-    [('b', 2), ('c', 3), ('e', 5)]
-    """
-
-    def __init__(self, dictionary, *keys):
-        self.dictionary = dictionary
-        self.keys = keys
-
-    def __enter__(self):
-        # Actions to perform upon exiting.
-        to_delete = []
-        to_update = {}
-
-        d = self.dictionary
-        for k in self.keys:
-            if k in d:
-                to_update[k] = d[k]
-            else:
-                to_delete.append(k)
-
-        self.to_delete = to_delete
-        self.to_update = to_update
-
-    def __exit__(self, *exc_info):
-        d = self.dictionary
-
-        for k in self.to_delete:
-            d.pop(k, None)
-        d.update(self.to_update)
-
-
-class NoOpContext(object):
-    """
-    Deprecated
-    
-    Context manager that does nothing."""
-
-    def __init__(self):
-        warnings.warn("""NoOpContext is deprecated since IPython 5.0 """,
-                                            DeprecationWarning, stacklevel=2)
-
-    def __enter__(self): pass
-    def __exit__(self, type, value, traceback): pass
+# encoding: utf-8 
+"""Miscellaneous context managers. 
+""" 
+ 
+import warnings 
+ 
+# Copyright (c) IPython Development Team. 
+# Distributed under the terms of the Modified BSD License. 
+ 
+class preserve_keys(object): 
+    """Preserve a set of keys in a dictionary. 
+ 
+    Upon entering the context manager the current values of the keys 
+    will be saved. Upon exiting, the dictionary will be updated to 
+    restore the original value of the preserved keys. Preserved keys 
+    which did not exist when entering the context manager will be 
+    deleted. 
+ 
+    Examples 
+    -------- 
+ 
+    >>> d = {'a': 1, 'b': 2, 'c': 3} 
+    >>> with preserve_keys(d, 'b', 'c', 'd'): 
+    ...     del d['a'] 
+    ...     del d['b']      # will be reset to 2 
+    ...     d['c'] = None   # will be reset to 3 
+    ...     d['d'] = 4      # will be deleted 
+    ...     d['e'] = 5 
+    ...     print(sorted(d.items())) 
+    ... 
+    [('c', None), ('d', 4), ('e', 5)] 
+    >>> print(sorted(d.items())) 
+    [('b', 2), ('c', 3), ('e', 5)] 
+    """ 
+ 
+    def __init__(self, dictionary, *keys): 
+        self.dictionary = dictionary 
+        self.keys = keys 
+ 
+    def __enter__(self): 
+        # Actions to perform upon exiting. 
+        to_delete = [] 
+        to_update = {} 
+ 
+        d = self.dictionary 
+        for k in self.keys: 
+            if k in d: 
+                to_update[k] = d[k] 
+            else: 
+                to_delete.append(k) 
+ 
+        self.to_delete = to_delete 
+        self.to_update = to_update 
+ 
+    def __exit__(self, *exc_info): 
+        d = self.dictionary 
+ 
+        for k in self.to_delete: 
+            d.pop(k, None) 
+        d.update(self.to_update) 
+ 
+ 
+class NoOpContext(object): 
+    """ 
+    Deprecated 
+     
+    Context manager that does nothing.""" 
+ 
+    def __init__(self): 
+        warnings.warn("""NoOpContext is deprecated since IPython 5.0 """, 
+                                            DeprecationWarning, stacklevel=2) 
+ 
+    def __enter__(self): pass 
+    def __exit__(self, type, value, traceback): pass