Restoring authorship annotation for Ivan Blinkov <ivan@blinkov.ru>. Commit 1 of 2.

1 files changed, 151 insertions, 151 deletions

diff --git a/contrib/python/prompt-toolkit/py2/prompt_toolkit/utils.py b/contrib/python/prompt-toolkit/py2/prompt_toolkit/utils.py
index 3cd931883c..aab7682184 100644
--- a/contrib/python/prompt-toolkit/py2/prompt_toolkit/utils.py
+++ b/contrib/python/prompt-toolkit/py2/prompt_toolkit/utils.py
@@ -1,98 +1,98 @@
-from __future__ import unicode_literals
+from __future__ import unicode_literals 
 import inspect
-import os
-import signal
-import sys
-import threading
+import os 
+import signal 
+import sys 
+import threading 
 import weakref
-
-from wcwidth import wcwidth
+ 
+from wcwidth import wcwidth 
 from six.moves import range
-
-
-__all__ = (
+ 
+ 
+__all__ = ( 
     'Event',
-    'DummyContext',
-    'get_cwidth',
-    'suspend_to_background_supported',
-    'is_conemu_ansi',
-    'is_windows',
-    'in_main_thread',
-    'take_using_weights',
+    'DummyContext', 
+    'get_cwidth', 
+    'suspend_to_background_supported', 
+    'is_conemu_ansi', 
+    'is_windows', 
+    'in_main_thread', 
+    'take_using_weights', 
     'test_callable_args',
-)
-
-
+) 
+ 
+ 
 class Event(object):
-    """
+    """ 
     Simple event to which event handlers can be attached. For instance::
-
+ 
         class Cls:
             def __init__(self):
                 # Define event. The first parameter is the sender.
                 self.event = Event(self)
-
+ 
         obj = Cls()
-
+ 
         def handler(sender):
             pass
-
+ 
         # Add event handler by using the += operator.
         obj.event += handler
 
         # Fire event.
         obj.event()
-    """
+    """ 
     def __init__(self, sender, handler=None):
         self.sender = sender
         self._handlers = []
-
+ 
         if handler is not None:
             self += handler
 
     def __call__(self):
         " Fire event. "
-        for handler in self._handlers:
+        for handler in self._handlers: 
             handler(self.sender)
-
+ 
     def fire(self):
         " Alias for just calling the event. "
         self()
 
-    def __iadd__(self, handler):
-        """
-        Add another handler to this callback.
+    def __iadd__(self, handler): 
+        """ 
+        Add another handler to this callback. 
         (Handler should be a callable that takes exactly one parameter: the
         sender object.)
-        """
+        """ 
         # Test handler.
         assert callable(handler)
         if not test_callable_args(handler, [None]):
             raise TypeError("%r doesn't take exactly one argument." % handler)
 
         # Add to list of event handlers.
-        self._handlers.append(handler)
-        return self
-
-    def __isub__(self, handler):
-        """
-        Remove a handler from this callback.
-        """
-        self._handlers.remove(handler)
-        return self
-
-
+        self._handlers.append(handler) 
+        return self 
+ 
+    def __isub__(self, handler): 
+        """ 
+        Remove a handler from this callback. 
+        """ 
+        self._handlers.remove(handler) 
+        return self 
+ 
+ 
 # Cache of signatures. Improves the performance of `test_callable_args`.
 _signatures_cache = weakref.WeakKeyDictionary()
-
-
+ 
+ 
 def test_callable_args(func, args):
     """
     Return True when this function can be called with the given arguments.
     """
     assert isinstance(args, (list, tuple))
     signature = getattr(inspect, 'signature', None)
-
+ 
     if signature is not None:
         # For Python 3, use inspect.signature.
         try:
@@ -129,112 +129,112 @@ def test_callable_args(func, args):
         return len(spec.args) - len(spec.defaults or []) <= len(args) <= len(spec.args)
 
 
-class DummyContext(object):
-    """
-    (contextlib.nested is not available on Py3)
-    """
-    def __enter__(self):
-        pass
-
-    def __exit__(self, *a):
-        pass
-
-
-class _CharSizesCache(dict):
-    """
-    Cache for wcwidth sizes.
-    """
-    def __missing__(self, string):
-        # Note: We use the `max(0, ...` because some non printable control
-        #       characters, like e.g. Ctrl-underscore get a -1 wcwidth value.
-        #       It can be possible that these characters end up in the input
-        #       text.
-        if len(string) == 1:
-            result = max(0, wcwidth(string))
-        else:
-            result = sum(max(0, wcwidth(c)) for c in string)
-
+class DummyContext(object): 
+    """ 
+    (contextlib.nested is not available on Py3) 
+    """ 
+    def __enter__(self): 
+        pass 
+ 
+    def __exit__(self, *a): 
+        pass 
+ 
+ 
+class _CharSizesCache(dict): 
+    """ 
+    Cache for wcwidth sizes. 
+    """ 
+    def __missing__(self, string): 
+        # Note: We use the `max(0, ...` because some non printable control 
+        #       characters, like e.g. Ctrl-underscore get a -1 wcwidth value. 
+        #       It can be possible that these characters end up in the input 
+        #       text. 
+        if len(string) == 1: 
+            result = max(0, wcwidth(string)) 
+        else: 
+            result = sum(max(0, wcwidth(c)) for c in string) 
+ 
         # Cache for short strings.
         # (It's hard to tell what we can consider short...)
         if len(string) < 256:
             self[string] = result
 
-        return result
-
-
-_CHAR_SIZES_CACHE = _CharSizesCache()
-
-
-def get_cwidth(string):
-    """
-    Return width of a string. Wrapper around ``wcwidth``.
-    """
-    return _CHAR_SIZES_CACHE[string]
-
-
-def suspend_to_background_supported():
-    """
-    Returns `True` when the Python implementation supports
-    suspend-to-background. This is typically `False' on Windows systems.
-    """
-    return hasattr(signal, 'SIGTSTP')
-
-
-def is_windows():
-    """
-    True when we are using Windows.
-    """
-    return sys.platform.startswith('win')  # E.g. 'win32', not 'darwin' or 'linux2'
-
-
-def is_conemu_ansi():
-    """
-    True when the ConEmu Windows console is used.
-    """
-    return is_windows() and os.environ.get('ConEmuANSI', 'OFF') == 'ON'
-
-
-def in_main_thread():
-    """
-    True when the current thread is the main thread.
-    """
-    return threading.current_thread().__class__.__name__ == '_MainThread'
-
-
-def take_using_weights(items, weights):
-    """
-    Generator that keeps yielding items from the items list, in proportion to
-    their weight. For instance::
-
-        # Getting the first 70 items from this generator should have yielded 10
-        # times A, 20 times B and 40 times C, all distributed equally..
-        take_using_weights(['A', 'B', 'C'], [5, 10, 20])
-
-    :param items: List of items to take from.
-    :param weights: Integers representing the weight. (Numbers have to be
-                    integers, not floats.)
-    """
-    assert isinstance(items, list)
-    assert isinstance(weights, list)
-    assert all(isinstance(i, int) for i in weights)
-    assert len(items) == len(weights)
-    assert len(items) > 0
-
-    already_taken = [0 for i in items]
-    item_count = len(items)
-    max_weight = max(weights)
-
-    i = 0
-    while True:
-        # Each iteration of this loop, we fill up until by (total_weight/max_weight).
-        adding = True
-        while adding:
-            adding = False
-
-            for item_i, item, weight in zip(range(item_count), items, weights):
-                if already_taken[item_i] < i * weight / float(max_weight):
-                    yield item
-                    already_taken[item_i] += 1
-                    adding = True
-
-        i += 1
+        return result 
+ 
+ 
+_CHAR_SIZES_CACHE = _CharSizesCache() 
+ 
+ 
+def get_cwidth(string): 
+    """ 
+    Return width of a string. Wrapper around ``wcwidth``. 
+    """ 
+    return _CHAR_SIZES_CACHE[string] 
+ 
+ 
+def suspend_to_background_supported(): 
+    """ 
+    Returns `True` when the Python implementation supports 
+    suspend-to-background. This is typically `False' on Windows systems. 
+    """ 
+    return hasattr(signal, 'SIGTSTP') 
+ 
+ 
+def is_windows(): 
+    """ 
+    True when we are using Windows. 
+    """ 
+    return sys.platform.startswith('win')  # E.g. 'win32', not 'darwin' or 'linux2' 
+ 
+ 
+def is_conemu_ansi(): 
+    """ 
+    True when the ConEmu Windows console is used. 
+    """ 
+    return is_windows() and os.environ.get('ConEmuANSI', 'OFF') == 'ON' 
+ 
+ 
+def in_main_thread(): 
+    """ 
+    True when the current thread is the main thread. 
+    """ 
+    return threading.current_thread().__class__.__name__ == '_MainThread' 
+ 
+ 
+def take_using_weights(items, weights): 
+    """ 
+    Generator that keeps yielding items from the items list, in proportion to 
+    their weight. For instance:: 
+ 
+        # Getting the first 70 items from this generator should have yielded 10 
+        # times A, 20 times B and 40 times C, all distributed equally.. 
+        take_using_weights(['A', 'B', 'C'], [5, 10, 20]) 
+ 
+    :param items: List of items to take from. 
+    :param weights: Integers representing the weight. (Numbers have to be 
+                    integers, not floats.) 
+    """ 
+    assert isinstance(items, list) 
+    assert isinstance(weights, list) 
+    assert all(isinstance(i, int) for i in weights) 
+    assert len(items) == len(weights) 
+    assert len(items) > 0 
+ 
+    already_taken = [0 for i in items] 
+    item_count = len(items) 
+    max_weight = max(weights) 
+ 
+    i = 0 
+    while True: 
+        # Each iteration of this loop, we fill up until by (total_weight/max_weight). 
+        adding = True 
+        while adding: 
+            adding = False 
+ 
+            for item_i, item, weight in zip(range(item_count), items, weights): 
+                if already_taken[item_i] < i * weight / float(max_weight): 
+                    yield item 
+                    already_taken[item_i] += 1 
+                    adding = True 
+ 
+        i += 1