Restoring authorship annotation for Nikita Slyusarev <[email protected]>. Commit 2 of 2.

12 files changed, 191 insertions, 191 deletions

diff --git a/contrib/python/ipython/py2/IPython/utils/PyColorize.py b/contrib/python/ipython/py2/IPython/utils/PyColorize.py
index 66d52f34ddf..124eb2d4e3c 100644
--- a/contrib/python/ipython/py2/IPython/utils/PyColorize.py
+++ b/contrib/python/ipython/py2/IPython/utils/PyColorize.py
@@ -54,8 +54,8 @@ except AttributeError:
 from IPython.utils.coloransi import TermColors, InputTermColors ,ColorScheme, ColorSchemeTable
 from IPython.utils.py3compat import PY3
 
-from .colorable import Colorable 
- 
+from .colorable import Colorable
+
 if PY3:
     from io import StringIO
 else:
@@ -122,40 +122,40 @@ LinuxColors = ColorScheme(
     'normal'         : Colors.Normal  # color off (usu. Colors.Normal)
     } )
 
-NeutralColors = ColorScheme( 
-    'Neutral',{ 
-    'header'         : Colors.Red, 
-    token.NUMBER     : Colors.Cyan, 
-    token.OP         : Colors.Blue, 
-    token.STRING     : Colors.Blue, 
-    tokenize.COMMENT : Colors.Red, 
-    token.NAME       : Colors.Normal, 
-    token.ERRORTOKEN : Colors.Red, 
- 
-    _KEYWORD         : Colors.Green, 
-    _TEXT            : Colors.Blue, 
- 
-    'in_prompt'      : InputTermColors.Blue, 
-    'in_number'      : InputTermColors.LightBlue, 
-    'in_prompt2'     : InputTermColors.Blue, 
-    'in_normal'      : InputTermColors.Normal,  # color off (usu. Colors.Normal) 
- 
-    'out_prompt'     : Colors.Red, 
-    'out_number'     : Colors.LightRed, 
- 
-    'normal'         : Colors.Normal  # color off (usu. Colors.Normal) 
-    }  ) 
- 
-# Hack: the 'neutral' colours are not very visible on a dark background on 
-# Windows. Since Windows command prompts have a dark background by default, and 
-# relatively few users are likely to alter that, we will use the 'Linux' colours, 
-# designed for a dark background, as the default on Windows. Changing it here 
-# avoids affecting the prompt colours rendered by prompt_toolkit, where the 
-# neutral defaults do work OK. 
- 
-if os.name == 'nt': 
-    NeutralColors = LinuxColors.copy(name='Neutral') 
- 
+NeutralColors = ColorScheme(
+    'Neutral',{
+    'header'         : Colors.Red,
+    token.NUMBER     : Colors.Cyan,
+    token.OP         : Colors.Blue,
+    token.STRING     : Colors.Blue,
+    tokenize.COMMENT : Colors.Red,
+    token.NAME       : Colors.Normal,
+    token.ERRORTOKEN : Colors.Red,
+
+    _KEYWORD         : Colors.Green,
+    _TEXT            : Colors.Blue,
+
+    'in_prompt'      : InputTermColors.Blue,
+    'in_number'      : InputTermColors.LightBlue,
+    'in_prompt2'     : InputTermColors.Blue,
+    'in_normal'      : InputTermColors.Normal,  # color off (usu. Colors.Normal)
+
+    'out_prompt'     : Colors.Red,
+    'out_number'     : Colors.LightRed,
+
+    'normal'         : Colors.Normal  # color off (usu. Colors.Normal)
+    }  )
+
+# Hack: the 'neutral' colours are not very visible on a dark background on
+# Windows. Since Windows command prompts have a dark background by default, and
+# relatively few users are likely to alter that, we will use the 'Linux' colours,
+# designed for a dark background, as the default on Windows. Changing it here
+# avoids affecting the prompt colours rendered by prompt_toolkit, where the
+# neutral defaults do work OK.
+
+if os.name == 'nt':
+    NeutralColors = LinuxColors.copy(name='Neutral')
+
 LightBGColors = ColorScheme(
     'LightBG',{
     'header'         : Colors.Red,
@@ -166,7 +166,7 @@ LightBGColors = ColorScheme(
     token.NAME       : Colors.Normal,
     token.ERRORTOKEN : Colors.Red,
 
- 
+
     _KEYWORD         : Colors.Green,
     _TEXT            : Colors.Blue,
 
@@ -182,21 +182,21 @@ LightBGColors = ColorScheme(
     }  )
 
 # Build table of color schemes (needed by the parser)
-ANSICodeColors = ColorSchemeTable([NoColor,LinuxColors,LightBGColors, NeutralColors], 
+ANSICodeColors = ColorSchemeTable([NoColor,LinuxColors,LightBGColors, NeutralColors],
                                   _scheme_default)
 
-class Parser(Colorable): 
+class Parser(Colorable):
     """ Format colored Python source.
     """
 
-    def __init__(self, color_table=None, out = sys.stdout, parent=None, style=None): 
+    def __init__(self, color_table=None, out = sys.stdout, parent=None, style=None):
         """ Create a parser with a specified color table and output channel.
 
         Call format() to process code.
         """
- 
-        super(Parser, self).__init__(parent=parent) 
- 
+
+        super(Parser, self).__init__(parent=parent)
+
         self.color_table = color_table and color_table or ANSICodeColors
         self.out = out
 
diff --git a/contrib/python/ipython/py2/IPython/utils/_process_common.py b/contrib/python/ipython/py2/IPython/utils/_process_common.py
index e1b305f7349..9ede30d3f8a 100644
--- a/contrib/python/ipython/py2/IPython/utils/_process_common.py
+++ b/contrib/python/ipython/py2/IPython/utils/_process_common.py
@@ -17,7 +17,7 @@ of subprocess utilities, and it contains tools that are common to all of them.
 import subprocess
 import shlex
 import sys
-import os 
+import os
 
 from IPython.utils import py3compat
 
@@ -70,14 +70,14 @@ def process_handler(cmd, callback, stderr=subprocess.PIPE):
     sys.stderr.flush()
     # On win32, close_fds can't be true when using pipes for stdin/out/err
     close_fds = sys.platform != 'win32'
-    # Determine if cmd should be run with system shell. 
-    shell = isinstance(cmd, py3compat.string_types) 
-    # On POSIX systems run shell commands with user-preferred shell. 
-    executable = None 
-    if shell and os.name == 'posix' and 'SHELL' in os.environ: 
-        executable = os.environ['SHELL'] 
-    p = subprocess.Popen(cmd, shell=shell, 
-                         executable=executable, 
+    # Determine if cmd should be run with system shell.
+    shell = isinstance(cmd, py3compat.string_types)
+    # On POSIX systems run shell commands with user-preferred shell.
+    executable = None
+    if shell and os.name == 'posix' and 'SHELL' in os.environ:
+        executable = os.environ['SHELL']
+    p = subprocess.Popen(cmd, shell=shell,
+                         executable=executable,
                          stdin=subprocess.PIPE,
                          stdout=subprocess.PIPE,
                          stderr=stderr,
diff --git a/contrib/python/ipython/py2/IPython/utils/colorable.py b/contrib/python/ipython/py2/IPython/utils/colorable.py
index 1d5b6b4abee..9f7c5ac213c 100644
--- a/contrib/python/ipython/py2/IPython/utils/colorable.py
+++ b/contrib/python/ipython/py2/IPython/utils/colorable.py
@@ -1,26 +1,26 @@
-#***************************************************************************** 
-# Copyright (C) 2016 The IPython Team <[email protected]> 
-# 
-# Distributed under the terms of the BSD License.  The full license is in 
-# the file COPYING, distributed as part of this software. 
-#***************************************************************************** 
-from __future__ import absolute_import 
- 
-""" 
-Color managing related utilities 
-""" 
- 
-import pygments 
- 
-from traitlets.config import Configurable 
-from traitlets import Unicode 
- 
- 
-available_themes = lambda : [s for s in pygments.styles.get_all_styles()]+['NoColor','LightBG','Linux', 'Neutral'] 
- 
-class Colorable(Configurable): 
-    """ 
-    A subclass of configurable for all the classes that have a `default_scheme` 
-    """ 
-    default_style=Unicode('lightbg').tag(config=True) 
- 
+#*****************************************************************************
+# Copyright (C) 2016 The IPython Team <[email protected]>
+#
+# Distributed under the terms of the BSD License.  The full license is in
+# the file COPYING, distributed as part of this software.
+#*****************************************************************************
+from __future__ import absolute_import
+
+"""
+Color managing related utilities
+"""
+
+import pygments
+
+from traitlets.config import Configurable
+from traitlets import Unicode
+
+
+available_themes = lambda : [s for s in pygments.styles.get_all_styles()]+['NoColor','LightBG','Linux', 'Neutral']
+
+class Colorable(Configurable):
+    """
+    A subclass of configurable for all the classes that have a `default_scheme`
+    """
+    default_style=Unicode('lightbg').tag(config=True)
+
diff --git a/contrib/python/ipython/py2/IPython/utils/contexts.py b/contrib/python/ipython/py2/IPython/utils/contexts.py
index 14f4b47ba6c..4d379b0eda1 100644
--- a/contrib/python/ipython/py2/IPython/utils/contexts.py
+++ b/contrib/python/ipython/py2/IPython/utils/contexts.py
@@ -2,8 +2,8 @@
 """Miscellaneous context managers.
 """
 
-import warnings 
- 
+import warnings
+
 # Copyright (c) IPython Development Team.
 # Distributed under the terms of the Modified BSD License.
 
@@ -61,14 +61,14 @@ class preserve_keys(object):
 
 
 class NoOpContext(object):
-    """ 
-    Deprecated 
-     
-    Context manager that does nothing.""" 
- 
-    def __init__(self): 
-        warnings.warn("""NoOpContext is deprecated since IPython 5.0 """, 
-                                            DeprecationWarning, stacklevel=2) 
- 
+    """
+    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
diff --git a/contrib/python/ipython/py2/IPython/utils/dir2.py b/contrib/python/ipython/py2/IPython/utils/dir2.py
index 352c079178e..f6f164f9b12 100644
--- a/contrib/python/ipython/py2/IPython/utils/dir2.py
+++ b/contrib/python/ipython/py2/IPython/utils/dir2.py
@@ -2,10 +2,10 @@
 """A fancy version of Python's builtin :func:`dir` function.
 """
 
-# Copyright (c) IPython Development Team. 
-# Distributed under the terms of the Modified BSD License. 
+# Copyright (c) IPython Development Team.
+# Distributed under the terms of the Modified BSD License.
 
-import inspect 
+import inspect
 from .py3compat import string_types
 
 
@@ -46,36 +46,36 @@ def dir2(obj):
 
     words = [w for w in words if isinstance(w, string_types)]
     return sorted(words)
- 
- 
-def get_real_method(obj, name): 
-    """Like getattr, but with a few extra sanity checks: 
- 
-    - If obj is a class, ignore its methods 
-    - Check if obj is a proxy that claims to have all attributes 
-    - Catch attribute access failing with any exception 
-    - Check that the attribute is a callable object 
- 
-    Returns the method or None. 
-    """ 
-    if inspect.isclass(obj): 
-        return None 
- 
-    try: 
-        canary = getattr(obj, '_ipython_canary_method_should_not_exist_', None) 
-    except Exception: 
-        return None 
- 
-    if canary is not None: 
-        # It claimed to have an attribute it should never have 
-        return None 
- 
-    try: 
-        m = getattr(obj, name, None) 
-    except Exception: 
-        return None 
- 
-    if callable(m): 
-        return m 
- 
-    return None 
+
+
+def get_real_method(obj, name):
+    """Like getattr, but with a few extra sanity checks:
+
+    - If obj is a class, ignore its methods
+    - Check if obj is a proxy that claims to have all attributes
+    - Catch attribute access failing with any exception
+    - Check that the attribute is a callable object
+
+    Returns the method or None.
+    """
+    if inspect.isclass(obj):
+        return None
+
+    try:
+        canary = getattr(obj, '_ipython_canary_method_should_not_exist_', None)
+    except Exception:
+        return None
+
+    if canary is not None:
+        # It claimed to have an attribute it should never have
+        return None
+
+    try:
+        m = getattr(obj, name, None)
+    except Exception:
+        return None
+
+    if callable(m):
+        return m
+
+    return None
diff --git a/contrib/python/ipython/py2/IPython/utils/io.py b/contrib/python/ipython/py2/IPython/utils/io.py
index 817ecff2789..036d6e3926a 100644
--- a/contrib/python/ipython/py2/IPython/utils/io.py
+++ b/contrib/python/ipython/py2/IPython/utils/io.py
@@ -14,19 +14,19 @@ import atexit
 import os
 import sys
 import tempfile
-import warnings 
+import warnings
 from warnings import warn
- 
-from IPython.utils.decorators import undoc 
+
+from IPython.utils.decorators import undoc
 from .capture import CapturedIO, capture_output
 from .py3compat import string_types, input, PY3
 
-@undoc 
+@undoc
 class IOStream:
 
-    def __init__(self, stream, fallback=None): 
-        warn('IOStream is deprecated since IPython 5.0, use sys.{stdin,stdout,stderr} instead', 
-             DeprecationWarning, stacklevel=2) 
+    def __init__(self, stream, fallback=None):
+        warn('IOStream is deprecated since IPython 5.0, use sys.{stdin,stdout,stderr} instead',
+             DeprecationWarning, stacklevel=2)
         if not hasattr(stream,'write') or not hasattr(stream,'flush'):
             if fallback is not None:
                 stream = fallback
@@ -52,8 +52,8 @@ class IOStream:
         return tpl.format(mod=cls.__module__, cls=cls.__name__, args=self.stream)
 
     def write(self,data):
-        warn('IOStream is deprecated since IPython 5.0, use sys.{stdin,stdout,stderr} instead', 
-             DeprecationWarning, stacklevel=2) 
+        warn('IOStream is deprecated since IPython 5.0, use sys.{stdin,stdout,stderr} instead',
+             DeprecationWarning, stacklevel=2)
         try:
             self._swrite(data)
         except:
@@ -68,8 +68,8 @@ class IOStream:
                       file=sys.stderr)
 
     def writelines(self, lines):
-        warn('IOStream is deprecated since IPython 5.0, use sys.{stdin,stdout,stderr} instead', 
-             DeprecationWarning, stacklevel=2) 
+        warn('IOStream is deprecated since IPython 5.0, use sys.{stdin,stdout,stderr} instead',
+             DeprecationWarning, stacklevel=2)
         if isinstance(lines, string_types):
             lines = [lines]
         for line in lines:
@@ -87,17 +87,17 @@ class IOStream:
         pass
 
 # setup stdin/stdout/stderr to sys.stdin/sys.stdout/sys.stderr
-devnull = open(os.devnull, 'w') 
+devnull = open(os.devnull, 'w')
 atexit.register(devnull.close)
 
-# 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) 
-    stdin = IOStream(sys.stdin, fallback=devnull) 
-    stdout = IOStream(sys.stdout, fallback=devnull) 
-    stderr = IOStream(sys.stderr, fallback=devnull) 
- 
+# 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)
+    stdin = IOStream(sys.stdin, fallback=devnull)
+    stdout = IOStream(sys.stdout, fallback=devnull)
+    stderr = IOStream(sys.stderr, fallback=devnull)
+
 class Tee(object):
     """A class to duplicate an output stream to stdout/err.
 
diff --git a/contrib/python/ipython/py2/IPython/utils/path.py b/contrib/python/ipython/py2/IPython/utils/path.py
index f7b76666421..fa850812c7f 100644
--- a/contrib/python/ipython/py2/IPython/utils/path.py
+++ b/contrib/python/ipython/py2/IPython/utils/path.py
@@ -72,21 +72,21 @@ def get_long_path_name(path):
 
 def unquote_filename(name, win32=(sys.platform=='win32')):
     """ On Windows, remove leading and trailing quotes from filenames.
- 
-    This function has been deprecated and should not be used any more: 
-    unquoting is now taken care of by :func:`IPython.utils.process.arg_split`. 
+
+    This function has been deprecated and should not be used any more:
+    unquoting is now taken care of by :func:`IPython.utils.process.arg_split`.
     """
-    warn("'unquote_filename' is deprecated since IPython 5.0 and should not " 
+    warn("'unquote_filename' is deprecated since IPython 5.0 and should not "
          "be used anymore", DeprecationWarning, stacklevel=2)
     if win32:
         if name.startswith(("'", '"')) and name.endswith(("'", '"')):
             name = name[1:-1]
     return name
 
- 
+
 def compress_user(path):
     """Reverse of :func:`os.path.expanduser`
-    """ 
+    """
     path = py3compat.unicode_to_str(path, sys.getfilesystemencoding())
     home = os.path.expanduser('~')
     if path.startswith(home):
@@ -101,9 +101,9 @@ def get_py_filename(name, force_win32=None):
     """
 
     name = os.path.expanduser(name)
-    if force_win32 is not None: 
-        warn("The 'force_win32' argument to 'get_py_filename' is deprecated " 
-             "since IPython 5.0 and should not be used anymore", 
+    if force_win32 is not None:
+        warn("The 'force_win32' argument to 'get_py_filename' is deprecated "
+             "since IPython 5.0 and should not be used anymore",
             DeprecationWarning, stacklevel=2)
     if not os.path.isfile(name) and not name.endswith('.py'):
         name += '.py'
diff --git a/contrib/python/ipython/py2/IPython/utils/py3compat.py b/contrib/python/ipython/py2/IPython/utils/py3compat.py
index 4d370545595..88602e5342d 100644
--- a/contrib/python/ipython/py2/IPython/utils/py3compat.py
+++ b/contrib/python/ipython/py2/IPython/utils/py3compat.py
@@ -6,7 +6,7 @@ import sys
 import re
 import shutil
 import types
-import platform 
+import platform
 
 from .encoding import DEFAULT_ENCODING
 
@@ -293,7 +293,7 @@ else:
 
 
 PY2 = not PY3
-PYPY = platform.python_implementation() == "PyPy" 
+PYPY = platform.python_implementation() == "PyPy"
 
 
 def annotate(**kwargs):
diff --git a/contrib/python/ipython/py2/IPython/utils/terminal.py b/contrib/python/ipython/py2/IPython/utils/terminal.py
index 397a3e86fb1..e92c410c79f 100644
--- a/contrib/python/ipython/py2/IPython/utils/terminal.py
+++ b/contrib/python/ipython/py2/IPython/utils/terminal.py
@@ -11,16 +11,16 @@ Authors:
 
 from __future__ import absolute_import
 
-# Copyright (c) IPython Development Team. 
-# Distributed under the terms of the Modified BSD License. 
+# Copyright (c) IPython Development Team.
+# Distributed under the terms of the Modified BSD License.
 
 import os
 import sys
 import warnings
-try: 
-    from shutil import get_terminal_size as _get_terminal_size 
-except ImportError: 
-    # use backport on Python 2 
+try:
+    from shutil import get_terminal_size as _get_terminal_size
+except ImportError:
+    # use backport on Python 2
     try:
         from backports.shutil_get_terminal_size import get_terminal_size as _get_terminal_size
     except ImportError:
@@ -121,5 +121,5 @@ def freeze_term_title():
     ignore_termtitle = True
 
 
-def get_terminal_size(defaultx=80, defaulty=25): 
-    return _get_terminal_size((defaultx, defaulty)) 
+def get_terminal_size(defaultx=80, defaulty=25):
+    return _get_terminal_size((defaultx, defaulty))
diff --git a/contrib/python/ipython/py2/IPython/utils/text.py b/contrib/python/ipython/py2/IPython/utils/text.py
index 63588fb3223..5ed1a845e35 100644
--- a/contrib/python/ipython/py2/IPython/utils/text.py
+++ b/contrib/python/ipython/py2/IPython/utils/text.py
@@ -14,11 +14,11 @@ import re
 import sys
 import textwrap
 from string import Formatter
-try: 
-    from pathlib import Path 
-except ImportError: 
-    # Python 2 backport 
-    from pathlib2 import Path 
+try:
+    from pathlib import Path
+except ImportError:
+    # Python 2 backport
+    from pathlib2 import Path
 
 from IPython.testing.skipdoctest import skip_doctest_py3, skip_doctest
 from IPython.utils import py3compat
@@ -72,7 +72,7 @@ class LSString(str):
         try:
             return self.__paths
         except AttributeError:
-            self.__paths = [Path(p) for p in self.split('\n') if os.path.exists(p)] 
+            self.__paths = [Path(p) for p in self.split('\n') if os.path.exists(p)]
             return self.__paths
 
     p = paths = property(get_paths)
@@ -130,7 +130,7 @@ class SList(list):
         try:
             return self.__paths
         except AttributeError:
-            self.__paths = [Path(p) for p in self if os.path.exists(p)] 
+            self.__paths = [Path(p) for p in self if os.path.exists(p)]
             return self.__paths
 
     p = paths = property(get_paths)
diff --git a/contrib/python/ipython/py2/IPython/utils/tokenutil.py b/contrib/python/ipython/py2/IPython/utils/tokenutil.py
index e01f5e7b324..f52d3b76583 100644
--- a/contrib/python/ipython/py2/IPython/utils/tokenutil.py
+++ b/contrib/python/ipython/py2/IPython/utils/tokenutil.py
@@ -31,7 +31,7 @@ def line_at_cursor(cell, cursor_pos=0):
     Parameters
     ----------
     
-    cell: str 
+    cell: str
         multiline block of text
     cursor_pos: integer
         the cursor position
diff --git a/contrib/python/ipython/py2/IPython/utils/warn.py b/contrib/python/ipython/py2/IPython/utils/warn.py
index ae5424a0389..dd4852227ba 100644
--- a/contrib/python/ipython/py2/IPython/utils/warn.py
+++ b/contrib/python/ipython/py2/IPython/utils/warn.py
@@ -9,17 +9,17 @@ Utilities for warnings.  Shoudn't we just use the built in warnings module.
 from __future__ import print_function
 
 import sys
-import warnings 
+import warnings
 
-warnings.warn("The module IPython.utils.warn is deprecated since IPython 4.0, use the standard warnings module instead", DeprecationWarning) 
+warnings.warn("The module IPython.utils.warn is deprecated since IPython 4.0, use the standard warnings module instead", DeprecationWarning)
 
 def warn(msg,level=2,exit_val=1):
-    """Deprecated 
+    """Deprecated
+
+    Standard warning printer. Gives formatting consistency.
 
-    Standard warning printer. Gives formatting consistency. 
+    Output is sent to sys.stderr.
 
-    Output is sent to sys.stderr. 
- 
     Options:
 
     -level(2): allows finer control:
@@ -31,35 +31,35 @@ def warn(msg,level=2,exit_val=1):
 
     -exit_val (1): exit value returned by sys.exit() for a level 4
     warning. Ignored for all other levels."""
-     
-    warnings.warn("The module IPython.utils.warn is deprecated since IPython 4.0, use the standard warnings module instead", DeprecationWarning) 
+    
+    warnings.warn("The module IPython.utils.warn is deprecated since IPython 4.0, use the standard warnings module instead", DeprecationWarning)
     if level>0:
         header = ['','','WARNING: ','ERROR: ','FATAL ERROR: ']
-        print(header[level], msg, sep='', file=sys.stderr) 
+        print(header[level], msg, sep='', file=sys.stderr)
         if level == 4:
-            print('Exiting.\n', file=sys.stderr) 
+            print('Exiting.\n', file=sys.stderr)
             sys.exit(exit_val)
 
             
 def info(msg):
-    """Deprecated  
-     
-    Equivalent to warn(msg,level=1).""" 
+    """Deprecated 
+    
+    Equivalent to warn(msg,level=1)."""
 
     warn(msg,level=1)
 
     
 def error(msg):
-    """Deprecated  
-     
-    Equivalent to warn(msg,level=3).""" 
+    """Deprecated 
+    
+    Equivalent to warn(msg,level=3)."""
 
     warn(msg,level=3)
 
     
 def fatal(msg,exit_val=1):
-    """Deprecated  
-     
-    Equivalent to warn(msg,exit_val=exit_val,level=4).""" 
+    """Deprecated 
+    
+    Equivalent to warn(msg,exit_val=exit_val,level=4)."""
 
     warn(msg,exit_val=exit_val,level=4)