Restoring authorship annotation for Nikita Slyusarev <nslus@yandex-team.com>. Commit 2 of 2.

1 files changed, 353 insertions, 353 deletions

diff --git a/contrib/python/ipython/py2/IPython/terminal/interactiveshell.py b/contrib/python/ipython/py2/IPython/terminal/interactiveshell.py
index c5b0d7d921..f67cc6b502 100644
--- a/contrib/python/ipython/py2/IPython/terminal/interactiveshell.py
+++ b/contrib/python/ipython/py2/IPython/terminal/interactiveshell.py
@@ -1,68 +1,68 @@
-"""IPython terminal interface using prompt_toolkit""" 
+"""IPython terminal interface using prompt_toolkit"""
 from __future__ import print_function
 
 import os
 import sys
-import warnings 
-from warnings import warn 
+import warnings
+from warnings import warn
 
 from IPython.core.interactiveshell import InteractiveShell, InteractiveShellABC
-from IPython.utils import io 
+from IPython.utils import io
 from IPython.utils.py3compat import PY3, cast_unicode_py2, input, string_types
 from IPython.utils.terminal import toggle_set_term_title, set_term_title
 from IPython.utils.process import abbrev_cwd
 from traitlets import Bool, Unicode, Dict, Integer, observe, Instance, Type, default, Enum, Union
 
 from prompt_toolkit.document import Document
-from prompt_toolkit.enums import DEFAULT_BUFFER, EditingMode 
-from prompt_toolkit.filters import (HasFocus, Condition, IsDone) 
-from prompt_toolkit.history import InMemoryHistory 
-from prompt_toolkit.shortcuts import create_prompt_application, create_eventloop, create_prompt_layout, create_output 
-from prompt_toolkit.interface import CommandLineInterface 
-from prompt_toolkit.key_binding.manager import KeyBindingManager 
-from prompt_toolkit.layout.processors import ConditionalProcessor, HighlightMatchingBracketProcessor 
-from prompt_toolkit.styles import PygmentsStyle, DynamicStyle 
+from prompt_toolkit.enums import DEFAULT_BUFFER, EditingMode
+from prompt_toolkit.filters import (HasFocus, Condition, IsDone)
+from prompt_toolkit.history import InMemoryHistory
+from prompt_toolkit.shortcuts import create_prompt_application, create_eventloop, create_prompt_layout, create_output
+from prompt_toolkit.interface import CommandLineInterface
+from prompt_toolkit.key_binding.manager import KeyBindingManager
+from prompt_toolkit.layout.processors import ConditionalProcessor, HighlightMatchingBracketProcessor
+from prompt_toolkit.styles import PygmentsStyle, DynamicStyle
 
 from pygments.styles import get_style_by_name
 from pygments.style import Style
-from pygments.token import Token 
- 
-from .debugger import TerminalPdb, Pdb 
-from .magics import TerminalMagics 
+from pygments.token import Token
+
+from .debugger import TerminalPdb, Pdb
+from .magics import TerminalMagics
 from .pt_inputhooks import get_inputhook_name_and_func
-from .prompts import Prompts, ClassicPrompts, RichPromptDisplayHook 
-from .ptutils import IPythonPTCompleter, IPythonPTLexer 
-from .shortcuts import register_ipython_shortcuts 
- 
-DISPLAY_BANNER_DEPRECATED = object() 
- 
- 
-from pygments.style import Style 
- 
-class _NoStyle(Style): pass 
- 
- 
- 
-_style_overrides_light_bg = { 
-            Token.Prompt: '#0000ff', 
-            Token.PromptNum: '#0000ee bold', 
-            Token.OutPrompt: '#cc0000', 
-            Token.OutPromptNum: '#bb0000 bold', 
-} 
- 
-_style_overrides_linux = { 
-            Token.Prompt: '#00cc00', 
-            Token.PromptNum: '#00bb00 bold', 
-            Token.OutPrompt: '#cc0000', 
-            Token.OutPromptNum: '#bb0000 bold', 
-} 
- 
- 
- 
+from .prompts import Prompts, ClassicPrompts, RichPromptDisplayHook
+from .ptutils import IPythonPTCompleter, IPythonPTLexer
+from .shortcuts import register_ipython_shortcuts
+
+DISPLAY_BANNER_DEPRECATED = object()
+
+
+from pygments.style import Style
+
+class _NoStyle(Style): pass
+
+
+
+_style_overrides_light_bg = {
+            Token.Prompt: '#0000ff',
+            Token.PromptNum: '#0000ee bold',
+            Token.OutPrompt: '#cc0000',
+            Token.OutPromptNum: '#bb0000 bold',
+}
+
+_style_overrides_linux = {
+            Token.Prompt: '#00cc00',
+            Token.PromptNum: '#00bb00 bold',
+            Token.OutPrompt: '#cc0000',
+            Token.OutPromptNum: '#bb0000 bold',
+}
+
+
+
 def get_default_editor():
     try:
         ed = os.environ['EDITOR']
-        if not PY3: 
+        if not PY3:
             ed = ed.decode()
         return ed
     except KeyError:
@@ -76,153 +76,153 @@ def get_default_editor():
     else:
         return 'notepad' # same in Windows!
 
-# conservatively check for tty 
-# overridden streams can result in things like: 
-# - sys.stdin = None 
-# - no isatty method 
-for _name in ('stdin', 'stdout', 'stderr'): 
-    _stream = getattr(sys, _name) 
-    if not _stream or not hasattr(_stream, 'isatty') or not _stream.isatty(): 
-        _is_tty = False 
-        break 
-else: 
-    _is_tty = True 
+# conservatively check for tty
+# overridden streams can result in things like:
+# - sys.stdin = None
+# - no isatty method
+for _name in ('stdin', 'stdout', 'stderr'):
+    _stream = getattr(sys, _name)
+    if not _stream or not hasattr(_stream, 'isatty') or not _stream.isatty():
+        _is_tty = False
+        break
+else:
+    _is_tty = True
 
 
-_use_simple_prompt = ('IPY_TEST_SIMPLE_PROMPT' in os.environ) or (not _is_tty) 
+_use_simple_prompt = ('IPY_TEST_SIMPLE_PROMPT' in os.environ) or (not _is_tty)
 
-class TerminalInteractiveShell(InteractiveShell): 
-    space_for_menu = Integer(6, help='Number of line at the bottom of the screen ' 
-                                                  'to reserve for the completion menu' 
-                            ).tag(config=True) 
+class TerminalInteractiveShell(InteractiveShell):
+    space_for_menu = Integer(6, help='Number of line at the bottom of the screen '
+                                                  'to reserve for the completion menu'
+                            ).tag(config=True)
 
-    def _space_for_menu_changed(self, old, new): 
-        self._update_layout() 
+    def _space_for_menu_changed(self, old, new):
+        self._update_layout()
 
-    pt_cli = None 
-    debugger_history = None 
-    _pt_app = None 
+    pt_cli = None
+    debugger_history = None
+    _pt_app = None
 
-    simple_prompt = Bool(_use_simple_prompt, 
+    simple_prompt = Bool(_use_simple_prompt,
         help="""Use `raw_input` for the REPL, without completion and prompt colors.
 
-            Useful when controlling IPython as a subprocess, and piping STDIN/OUT/ERR. Known usage are: 
-            IPython own testing machinery, and emacs inferior-shell integration through elpy. 
+            Useful when controlling IPython as a subprocess, and piping STDIN/OUT/ERR. Known usage are:
+            IPython own testing machinery, and emacs inferior-shell integration through elpy.
 
-            This mode default to `True` if the `IPY_TEST_SIMPLE_PROMPT` 
-            environment variable is set, or the current terminal is not a tty. 
+            This mode default to `True` if the `IPY_TEST_SIMPLE_PROMPT`
+            environment variable is set, or the current terminal is not a tty.
 
-            """ 
-            ).tag(config=True) 
+            """
+            ).tag(config=True)
 
-    @property 
-    def debugger_cls(self): 
-        return Pdb if self.simple_prompt else TerminalPdb 
+    @property
+    def debugger_cls(self):
+        return Pdb if self.simple_prompt else TerminalPdb
 
-    confirm_exit = Bool(True, 
-        help=""" 
-        Set to confirm when you try to exit IPython with an EOF (Control-D 
-        in Unix, Control-Z/Enter in Windows). By typing 'exit' or 'quit', 
-        you can force a direct exit without any confirmation.""", 
-    ).tag(config=True) 
+    confirm_exit = Bool(True,
+        help="""
+        Set to confirm when you try to exit IPython with an EOF (Control-D
+        in Unix, Control-Z/Enter in Windows). By typing 'exit' or 'quit',
+        you can force a direct exit without any confirmation.""",
+    ).tag(config=True)
 
-    editing_mode = Unicode('emacs', 
-        help="Shortcut style to use at the prompt. 'vi' or 'emacs'.", 
-    ).tag(config=True) 
+    editing_mode = Unicode('emacs',
+        help="Shortcut style to use at the prompt. 'vi' or 'emacs'.",
+    ).tag(config=True)
 
-    mouse_support = Bool(False, 
-        help="Enable mouse support in the prompt" 
-    ).tag(config=True) 
+    mouse_support = Bool(False,
+        help="Enable mouse support in the prompt"
+    ).tag(config=True)
 
     # We don't load the list of styles for the help string, because loading
     # Pygments plugins takes time and can cause unexpected errors.
     highlighting_style = Union([Unicode('legacy'), Type(klass=Style)],
         help="""The name or class of a Pygments style to use for syntax
         highlighting. To see available styles, run `pygmentize -L styles`."""
-    ).tag(config=True) 
+    ).tag(config=True)
 
 
-    @observe('highlighting_style') 
-    @observe('colors') 
-    def _highlighting_style_changed(self, change): 
-        self.refresh_style() 
+    @observe('highlighting_style')
+    @observe('colors')
+    def _highlighting_style_changed(self, change):
+        self.refresh_style()
 
-    def refresh_style(self): 
+    def refresh_style(self):
         self._style = self._make_style_from_name_or_cls(self.highlighting_style)
 
 
-    highlighting_style_overrides = Dict( 
-        help="Override highlighting format for specific tokens" 
-    ).tag(config=True) 
+    highlighting_style_overrides = Dict(
+        help="Override highlighting format for specific tokens"
+    ).tag(config=True)
 
-    true_color = Bool(False, 
-        help=("Use 24bit colors instead of 256 colors in prompt highlighting. " 
-              "If your terminal supports true color, the following command " 
-              "should print 'TRUECOLOR' in orange: " 
-              "printf \"\\x1b[38;2;255;100;0mTRUECOLOR\\x1b[0m\\n\"") 
-    ).tag(config=True) 
+    true_color = Bool(False,
+        help=("Use 24bit colors instead of 256 colors in prompt highlighting. "
+              "If your terminal supports true color, the following command "
+              "should print 'TRUECOLOR' in orange: "
+              "printf \"\\x1b[38;2;255;100;0mTRUECOLOR\\x1b[0m\\n\"")
+    ).tag(config=True)
 
-    editor = Unicode(get_default_editor(), 
-        help="Set the editor used by IPython (default to $EDITOR/vi/notepad)." 
-    ).tag(config=True) 
+    editor = Unicode(get_default_editor(),
+        help="Set the editor used by IPython (default to $EDITOR/vi/notepad)."
+    ).tag(config=True)
 
-    prompts_class = Type(Prompts, help='Class used to generate Prompt token for prompt_toolkit').tag(config=True) 
+    prompts_class = Type(Prompts, help='Class used to generate Prompt token for prompt_toolkit').tag(config=True)
 
-    prompts = Instance(Prompts) 
+    prompts = Instance(Prompts)
 
-    @default('prompts') 
-    def _prompts_default(self): 
-        return self.prompts_class(self) 
+    @default('prompts')
+    def _prompts_default(self):
+        return self.prompts_class(self)
 
-    @observe('prompts') 
-    def _(self, change): 
-        self._update_layout() 
+    @observe('prompts')
+    def _(self, change):
+        self._update_layout()
 
-    @default('displayhook_class') 
-    def _displayhook_class_default(self): 
-        return RichPromptDisplayHook 
+    @default('displayhook_class')
+    def _displayhook_class_default(self):
+        return RichPromptDisplayHook
 
-    term_title = Bool(True, 
-        help="Automatically set the terminal title" 
-    ).tag(config=True) 
+    term_title = Bool(True,
+        help="Automatically set the terminal title"
+    ).tag(config=True)
 
     display_completions = Enum(('column', 'multicolumn','readlinelike'),
-        help= ( "Options for displaying tab completions, 'column', 'multicolumn', and " 
-                "'readlinelike'. These options are for `prompt_toolkit`, see " 
-                "`prompt_toolkit` documentation for more information." 
-                ), 
-        default_value='multicolumn').tag(config=True) 
+        help= ( "Options for displaying tab completions, 'column', 'multicolumn', and "
+                "'readlinelike'. These options are for `prompt_toolkit`, see "
+                "`prompt_toolkit` documentation for more information."
+                ),
+        default_value='multicolumn').tag(config=True)
 
-    highlight_matching_brackets = Bool(True, 
+    highlight_matching_brackets = Bool(True,
         help="Highlight matching brackets.",
-    ).tag(config=True) 
+    ).tag(config=True)
 
     extra_open_editor_shortcuts = Bool(False,
         help="Enable vi (v) or Emacs (C-X C-E) shortcuts to open an external editor. "
              "This is in addition to the F2 binding, which is always enabled."
     ).tag(config=True)
 
-    @observe('term_title') 
-    def init_term_title(self, change=None): 
-        # Enable or disable the terminal title. 
-        if self.term_title: 
-            toggle_set_term_title(True) 
-            set_term_title('IPython: ' + abbrev_cwd()) 
-        else: 
-            toggle_set_term_title(False) 
-
-    def init_display_formatter(self): 
-        super(TerminalInteractiveShell, self).init_display_formatter() 
-        # terminal only supports plain text 
-        self.display_formatter.active_types = ['text/plain'] 
+    @observe('term_title')
+    def init_term_title(self, change=None):
+        # Enable or disable the terminal title.
+        if self.term_title:
+            toggle_set_term_title(True)
+            set_term_title('IPython: ' + abbrev_cwd())
+        else:
+            toggle_set_term_title(False)
+
+    def init_display_formatter(self):
+        super(TerminalInteractiveShell, self).init_display_formatter()
+        # terminal only supports plain text
+        self.display_formatter.active_types = ['text/plain']
         # disable `_ipython_display_`
         self.display_formatter.ipython_display_formatter.enabled = False
 
-    def init_prompt_toolkit_cli(self): 
-        if self.simple_prompt: 
-            # Fall back to plain non-interactive output for tests. 
-            # This is very limited, and only accepts a single line. 
-            def prompt(): 
+    def init_prompt_toolkit_cli(self):
+        if self.simple_prompt:
+            # Fall back to plain non-interactive output for tests.
+            # This is very limited, and only accepts a single line.
+            def prompt():
                 isp = self.input_splitter
                 prompt_text = "".join(x[1] for x in self.prompts.in_prompt_tokens())
                 prompt_continuation = "".join(x[1] for x in self.prompts.continuation_prompt_tokens())
@@ -231,82 +231,82 @@ class TerminalInteractiveShell(InteractiveShell):
                     isp.push(line)
                     prompt_text = prompt_continuation
                 return isp.source_reset()
-            self.prompt_for_code = prompt 
-            return 
+            self.prompt_for_code = prompt
+            return
 
-        # Set up keyboard shortcuts 
+        # Set up keyboard shortcuts
         kbmanager = KeyBindingManager.for_prompt(
             enable_open_in_editor=self.extra_open_editor_shortcuts,
         )
-        register_ipython_shortcuts(kbmanager.registry, self) 
-
-        # Pre-populate history from IPython's history database 
-        history = InMemoryHistory() 
-        last_cell = u"" 
-        for __, ___, cell in self.history_manager.get_tail(self.history_load_length, 
-                                                        include_latest=True): 
-            # Ignore blank lines and consecutive duplicates 
-            cell = cell.rstrip() 
-            if cell and (cell != last_cell): 
-                history.append(cell) 
+        register_ipython_shortcuts(kbmanager.registry, self)
+
+        # Pre-populate history from IPython's history database
+        history = InMemoryHistory()
+        last_cell = u""
+        for __, ___, cell in self.history_manager.get_tail(self.history_load_length,
+                                                        include_latest=True):
+            # Ignore blank lines and consecutive duplicates
+            cell = cell.rstrip()
+            if cell and (cell != last_cell):
+                history.append(cell)
                 last_cell = cell
 
         self._style = self._make_style_from_name_or_cls(self.highlighting_style)
         self.style = DynamicStyle(lambda: self._style)
 
-        editing_mode = getattr(EditingMode, self.editing_mode.upper()) 
+        editing_mode = getattr(EditingMode, self.editing_mode.upper())
 
         def patch_stdout(**kwargs):
             return self.pt_cli.patch_stdout_context(**kwargs)
 
-        self._pt_app = create_prompt_application( 
-                            editing_mode=editing_mode, 
-                            key_bindings_registry=kbmanager.registry, 
-                            history=history, 
+        self._pt_app = create_prompt_application(
+                            editing_mode=editing_mode,
+                            key_bindings_registry=kbmanager.registry,
+                            history=history,
                             completer=IPythonPTCompleter(shell=self,
                                                     patch_stdout=patch_stdout),
-                            enable_history_search=True, 
+                            enable_history_search=True,
                             style=self.style,
-                            mouse_support=self.mouse_support, 
-                            **self._layout_options() 
-        ) 
-        self._eventloop = create_eventloop(self.inputhook) 
-        self.pt_cli = CommandLineInterface( 
-            self._pt_app, eventloop=self._eventloop, 
-            output=create_output(true_color=self.true_color)) 
+                            mouse_support=self.mouse_support,
+                            **self._layout_options()
+        )
+        self._eventloop = create_eventloop(self.inputhook)
+        self.pt_cli = CommandLineInterface(
+            self._pt_app, eventloop=self._eventloop,
+            output=create_output(true_color=self.true_color))
 
     def _make_style_from_name_or_cls(self, name_or_cls):
-        """ 
-        Small wrapper that make an IPython compatible style from a style name 
+        """
+        Small wrapper that make an IPython compatible style from a style name
 
         We need that to add style for prompt ... etc.
         """
-        style_overrides = {} 
+        style_overrides = {}
         if name_or_cls == 'legacy':
-            legacy = self.colors.lower() 
-            if legacy == 'linux': 
-                style_cls = get_style_by_name('monokai') 
-                style_overrides = _style_overrides_linux 
-            elif legacy == 'lightbg': 
-                style_overrides = _style_overrides_light_bg 
-                style_cls = get_style_by_name('pastie') 
-            elif legacy == 'neutral': 
-                # The default theme needs to be visible on both a dark background 
-                # and a light background, because we can't tell what the terminal 
-                # looks like. These tweaks to the default theme help with that. 
-                style_cls = get_style_by_name('default') 
-                style_overrides.update({ 
-                    Token.Number: '#007700', 
-                    Token.Operator: 'noinherit', 
-                    Token.String: '#BB6622', 
-                    Token.Name.Function: '#2080D0', 
-                    Token.Name.Class: 'bold #2080D0', 
-                    Token.Name.Namespace: 'bold #2080D0', 
-                    Token.Prompt: '#009900', 
-                    Token.PromptNum: '#00ff00 bold', 
-                    Token.OutPrompt: '#990000', 
-                    Token.OutPromptNum: '#ff0000 bold', 
-                }) 
+            legacy = self.colors.lower()
+            if legacy == 'linux':
+                style_cls = get_style_by_name('monokai')
+                style_overrides = _style_overrides_linux
+            elif legacy == 'lightbg':
+                style_overrides = _style_overrides_light_bg
+                style_cls = get_style_by_name('pastie')
+            elif legacy == 'neutral':
+                # The default theme needs to be visible on both a dark background
+                # and a light background, because we can't tell what the terminal
+                # looks like. These tweaks to the default theme help with that.
+                style_cls = get_style_by_name('default')
+                style_overrides.update({
+                    Token.Number: '#007700',
+                    Token.Operator: 'noinherit',
+                    Token.String: '#BB6622',
+                    Token.Name.Function: '#2080D0',
+                    Token.Name.Class: 'bold #2080D0',
+                    Token.Name.Namespace: 'bold #2080D0',
+                    Token.Prompt: '#009900',
+                    Token.PromptNum: '#00ff00 bold',
+                    Token.OutPrompt: '#990000',
+                    Token.OutPromptNum: '#ff0000 bold',
+                })
 
                 # Hack: Due to limited color support on the Windows console
                 # the prompt colors will be wrong without this
@@ -317,111 +317,111 @@ class TerminalInteractiveShell(InteractiveShell):
                         Token.OutPrompt: '#ansidarkred',
                         Token.OutPromptNum: '#ansired bold',
                     })
-            elif legacy =='nocolor': 
-                style_cls=_NoStyle 
-                style_overrides = {} 
-            else : 
-                raise ValueError('Got unknown colors: ', legacy) 
-        else : 
+            elif legacy =='nocolor':
+                style_cls=_NoStyle
+                style_overrides = {}
+            else :
+                raise ValueError('Got unknown colors: ', legacy)
+        else :
             if isinstance(name_or_cls, string_types):
                 style_cls = get_style_by_name(name_or_cls)
             else:
                 style_cls = name_or_cls
-            style_overrides = { 
-                Token.Prompt: '#009900', 
-                Token.PromptNum: '#00ff00 bold', 
-                Token.OutPrompt: '#990000', 
-                Token.OutPromptNum: '#ff0000 bold', 
-            } 
-        style_overrides.update(self.highlighting_style_overrides) 
-        style = PygmentsStyle.from_defaults(pygments_style_cls=style_cls, 
-                                            style_dict=style_overrides) 
-
-        return style 
-
-    def _layout_options(self): 
-        """ 
-        Return the current layout option for the current Terminal InteractiveShell 
-        """ 
-        return { 
-                'lexer':IPythonPTLexer(), 
-                'reserve_space_for_menu':self.space_for_menu, 
-                'get_prompt_tokens':self.prompts.in_prompt_tokens, 
-                'get_continuation_tokens':self.prompts.continuation_prompt_tokens, 
-                'multiline':True, 
-                'display_completions_in_columns': (self.display_completions == 'multicolumn'), 
-
-                # Highlight matching brackets, but only when this setting is 
-                # enabled, and only when the DEFAULT_BUFFER has the focus. 
-                'extra_input_processors': [ConditionalProcessor( 
-                        processor=HighlightMatchingBracketProcessor(chars='[](){}'), 
-                        filter=HasFocus(DEFAULT_BUFFER) & ~IsDone() & 
-                            Condition(lambda cli: self.highlight_matching_brackets))], 
-                } 
-
-    def _update_layout(self): 
+            style_overrides = {
+                Token.Prompt: '#009900',
+                Token.PromptNum: '#00ff00 bold',
+                Token.OutPrompt: '#990000',
+                Token.OutPromptNum: '#ff0000 bold',
+            }
+        style_overrides.update(self.highlighting_style_overrides)
+        style = PygmentsStyle.from_defaults(pygments_style_cls=style_cls,
+                                            style_dict=style_overrides)
+
+        return style
+
+    def _layout_options(self):
         """
-        Ask for a re computation of the application layout, if for example , 
-        some configuration options have changed. 
-        """ 
-        if self._pt_app: 
-            self._pt_app.layout = create_prompt_layout(**self._layout_options()) 
-
-    def prompt_for_code(self): 
-        document = self.pt_cli.run( 
-            pre_run=self.pre_prompt, reset_current_buffer=True) 
-        return document.text 
-
-    def enable_win_unicode_console(self): 
+        Return the current layout option for the current Terminal InteractiveShell
+        """
+        return {
+                'lexer':IPythonPTLexer(),
+                'reserve_space_for_menu':self.space_for_menu,
+                'get_prompt_tokens':self.prompts.in_prompt_tokens,
+                'get_continuation_tokens':self.prompts.continuation_prompt_tokens,
+                'multiline':True,
+                'display_completions_in_columns': (self.display_completions == 'multicolumn'),
+
+                # Highlight matching brackets, but only when this setting is
+                # enabled, and only when the DEFAULT_BUFFER has the focus.
+                'extra_input_processors': [ConditionalProcessor(
+                        processor=HighlightMatchingBracketProcessor(chars='[](){}'),
+                        filter=HasFocus(DEFAULT_BUFFER) & ~IsDone() &
+                            Condition(lambda cli: self.highlight_matching_brackets))],
+                }
+
+    def _update_layout(self):
+        """
+        Ask for a re computation of the application layout, if for example ,
+        some configuration options have changed.
+        """
+        if self._pt_app:
+            self._pt_app.layout = create_prompt_layout(**self._layout_options())
+
+    def prompt_for_code(self):
+        document = self.pt_cli.run(
+            pre_run=self.pre_prompt, reset_current_buffer=True)
+        return document.text
+
+    def enable_win_unicode_console(self):
         if sys.version_info >= (3, 6):
             # Since PEP 528, Python uses the unicode APIs for the Windows
             # console by default, so WUC shouldn't be needed.
             return
 
-        import win_unicode_console 
+        import win_unicode_console
 
-        if PY3: 
-            win_unicode_console.enable() 
+        if PY3:
+            win_unicode_console.enable()
         else:
-            # https://github.com/ipython/ipython/issues/9768 
-            from win_unicode_console.streams import (TextStreamWrapper, 
-                                 stdout_text_transcoded, stderr_text_transcoded) 
+            # https://github.com/ipython/ipython/issues/9768
+            from win_unicode_console.streams import (TextStreamWrapper,
+                                 stdout_text_transcoded, stderr_text_transcoded)
 
-            class LenientStrStreamWrapper(TextStreamWrapper): 
-                def write(self, s): 
-                    if isinstance(s, bytes): 
-                        s = s.decode(self.encoding, 'replace') 
+            class LenientStrStreamWrapper(TextStreamWrapper):
+                def write(self, s):
+                    if isinstance(s, bytes):
+                        s = s.decode(self.encoding, 'replace')
 
-                    self.base.write(s) 
+                    self.base.write(s)
 
-            stdout_text_str = LenientStrStreamWrapper(stdout_text_transcoded) 
-            stderr_text_str = LenientStrStreamWrapper(stderr_text_transcoded) 
+            stdout_text_str = LenientStrStreamWrapper(stdout_text_transcoded)
+            stderr_text_str = LenientStrStreamWrapper(stderr_text_transcoded)
 
-            win_unicode_console.enable(stdout=stdout_text_str, 
-                                       stderr=stderr_text_str) 
+            win_unicode_console.enable(stdout=stdout_text_str,
+                                       stderr=stderr_text_str)
 
-    def init_io(self): 
-        if sys.platform not in {'win32', 'cli'}: 
-            return 
+    def init_io(self):
+        if sys.platform not in {'win32', 'cli'}:
+            return
 
-        self.enable_win_unicode_console() 
+        self.enable_win_unicode_console()
 
-        import colorama 
-        colorama.init() 
+        import colorama
+        colorama.init()
 
-        # For some reason we make these wrappers around stdout/stderr. 
-        # For now, we need to reset them so all output gets coloured. 
-        # https://github.com/ipython/ipython/issues/8669 
-        # io.std* are deprecated, but don't show our own deprecation warnings 
-        # during initialization of the deprecated API. 
-        with warnings.catch_warnings(): 
-            warnings.simplefilter('ignore', DeprecationWarning) 
-            io.stdout = io.IOStream(sys.stdout) 
-            io.stderr = io.IOStream(sys.stderr) 
+        # For some reason we make these wrappers around stdout/stderr.
+        # For now, we need to reset them so all output gets coloured.
+        # https://github.com/ipython/ipython/issues/8669
+        # io.std* are deprecated, but don't show our own deprecation warnings
+        # during initialization of the deprecated API.
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', DeprecationWarning)
+            io.stdout = io.IOStream(sys.stdout)
+            io.stderr = io.IOStream(sys.stderr)
 
-    def init_magics(self): 
-        super(TerminalInteractiveShell, self).init_magics() 
-        self.register_magics(TerminalMagics) 
+    def init_magics(self):
+        super(TerminalInteractiveShell, self).init_magics()
+        self.register_magics(TerminalMagics)
 
     def init_alias(self):
         # The parent class defines aliases that can be safely used with any
@@ -432,25 +432,25 @@ class TerminalInteractiveShell(InteractiveShell):
         # need direct access to the console in a way that we can't emulate in
         # GUI or web frontend
         if os.name == 'posix':
-            for cmd in ['clear', 'more', 'less', 'man']: 
-                self.alias_manager.soft_define_alias(cmd, cmd) 
+            for cmd in ['clear', 'more', 'less', 'man']:
+                self.alias_manager.soft_define_alias(cmd, cmd)
 
 
-    def __init__(self, *args, **kwargs): 
-        super(TerminalInteractiveShell, self).__init__(*args, **kwargs) 
-        self.init_prompt_toolkit_cli() 
-        self.init_term_title() 
-        self.keep_running = True 
+    def __init__(self, *args, **kwargs):
+        super(TerminalInteractiveShell, self).__init__(*args, **kwargs)
+        self.init_prompt_toolkit_cli()
+        self.init_term_title()
+        self.keep_running = True
 
-        self.debugger_history = InMemoryHistory() 
+        self.debugger_history = InMemoryHistory()
 
-    def ask_exit(self): 
-        self.keep_running = False 
+    def ask_exit(self):
+        self.keep_running = False
 
-    rl_next_input = None 
+    rl_next_input = None
 
-    def pre_prompt(self): 
-        if self.rl_next_input: 
+    def pre_prompt(self):
+        if self.rl_next_input:
             # We can't set the buffer here, because it will be reset just after
             # this. Adding a callable to pre_run_callables does what we need
             # after the buffer is reset.
@@ -463,37 +463,37 @@ class TerminalInteractiveShell(InteractiveShell):
                 # Older version of prompt_toolkit; it's OK to set the document
                 # directly here.
                 set_doc()
-            self.rl_next_input = None 
+            self.rl_next_input = None
 
-    def interact(self, display_banner=DISPLAY_BANNER_DEPRECATED): 
+    def interact(self, display_banner=DISPLAY_BANNER_DEPRECATED):
 
-        if display_banner is not DISPLAY_BANNER_DEPRECATED: 
-            warn('interact `display_banner` argument is deprecated since IPython 5.0. Call `show_banner()` if needed.', DeprecationWarning, stacklevel=2) 
+        if display_banner is not DISPLAY_BANNER_DEPRECATED:
+            warn('interact `display_banner` argument is deprecated since IPython 5.0. Call `show_banner()` if needed.', DeprecationWarning, stacklevel=2)
 
-        self.keep_running = True 
-        while self.keep_running: 
-            print(self.separate_in, end='') 
+        self.keep_running = True
+        while self.keep_running:
+            print(self.separate_in, end='')
 
             try:
-                code = self.prompt_for_code() 
-            except EOFError: 
-                if (not self.confirm_exit) \ 
-                        or self.ask_yes_no('Do you really want to exit ([y]/n)?','y','n'): 
-                    self.ask_exit() 
+                code = self.prompt_for_code()
+            except EOFError:
+                if (not self.confirm_exit) \
+                        or self.ask_yes_no('Do you really want to exit ([y]/n)?','y','n'):
+                    self.ask_exit()
 
             else:
-                if code: 
-                    self.run_cell(code, store_history=True) 
-
-    def mainloop(self, display_banner=DISPLAY_BANNER_DEPRECATED): 
-        # An extra layer of protection in case someone mashing Ctrl-C breaks 
-        # out of our internal code. 
-        if display_banner is not DISPLAY_BANNER_DEPRECATED: 
-            warn('mainloop `display_banner` argument is deprecated since IPython 5.0. Call `show_banner()` if needed.', DeprecationWarning, stacklevel=2) 
-        while True: 
+                if code:
+                    self.run_cell(code, store_history=True)
+
+    def mainloop(self, display_banner=DISPLAY_BANNER_DEPRECATED):
+        # An extra layer of protection in case someone mashing Ctrl-C breaks
+        # out of our internal code.
+        if display_banner is not DISPLAY_BANNER_DEPRECATED:
+            warn('mainloop `display_banner` argument is deprecated since IPython 5.0. Call `show_banner()` if needed.', DeprecationWarning, stacklevel=2)
+        while True:
             try:
-                self.interact() 
-                break 
+                self.interact()
+                break
             except KeyboardInterrupt as e:
                 print("\n%s escaped interact()\n" % type(e).__name__)
             finally:
@@ -504,49 +504,49 @@ class TerminalInteractiveShell(InteractiveShell):
                 if hasattr(self, '_eventloop'):
                     self._eventloop.stop()
 
-    _inputhook = None 
-    def inputhook(self, context): 
-        if self._inputhook is not None: 
-            self._inputhook(context) 
+    _inputhook = None
+    def inputhook(self, context):
+        if self._inputhook is not None:
+            self._inputhook(context)
 
     active_eventloop = None
-    def enable_gui(self, gui=None): 
-        if gui: 
+    def enable_gui(self, gui=None):
+        if gui:
             self.active_eventloop, self._inputhook =\
                 get_inputhook_name_and_func(gui)
-        else: 
+        else:
             self.active_eventloop = self._inputhook = None
 
-    # Run !system commands directly, not through pipes, so terminal programs 
-    # work correctly. 
-    system = InteractiveShell.system_raw 
+    # Run !system commands directly, not through pipes, so terminal programs
+    # work correctly.
+    system = InteractiveShell.system_raw
 
-    def auto_rewrite_input(self, cmd): 
-        """Overridden from the parent class to use fancy rewriting prompt""" 
-        if not self.show_rewritten_input: 
-            return 
+    def auto_rewrite_input(self, cmd):
+        """Overridden from the parent class to use fancy rewriting prompt"""
+        if not self.show_rewritten_input:
+            return
 
-        tokens = self.prompts.rewrite_prompt_tokens() 
-        if self.pt_cli: 
-            self.pt_cli.print_tokens(tokens) 
-            print(cmd) 
+        tokens = self.prompts.rewrite_prompt_tokens()
+        if self.pt_cli:
+            self.pt_cli.print_tokens(tokens)
+            print(cmd)
         else:
-            prompt = ''.join(s for t, s in tokens) 
-            print(prompt, cmd, sep='') 
+            prompt = ''.join(s for t, s in tokens)
+            print(prompt, cmd, sep='')
 
-    _prompts_before = None 
-    def switch_doctest_mode(self, mode): 
-        """Switch prompts to classic for %doctest_mode""" 
-        if mode: 
-            self._prompts_before = self.prompts 
-            self.prompts = ClassicPrompts(self) 
-        elif self._prompts_before: 
-            self.prompts = self._prompts_before 
-            self._prompts_before = None 
-        self._update_layout() 
+    _prompts_before = None
+    def switch_doctest_mode(self, mode):
+        """Switch prompts to classic for %doctest_mode"""
+        if mode:
+            self._prompts_before = self.prompts
+            self.prompts = ClassicPrompts(self)
+        elif self._prompts_before:
+            self.prompts = self._prompts_before
+            self._prompts_before = None
+        self._update_layout()
 
 
-InteractiveShellABC.register(TerminalInteractiveShell) 
+InteractiveShellABC.register(TerminalInteractiveShell)
 
-if __name__ == '__main__': 
-    TerminalInteractiveShell.instance().interact() 
+if __name__ == '__main__':
+    TerminalInteractiveShell.instance().interact()