Update contrib/python/ipython/py3 to 8.3.0

ref:e84342d4d30476f9148137f37fd0c6405fd36f55

1 files changed, 9 insertions, 133 deletions

diff --git a/contrib/python/ipython/py3/IPython/utils/py3compat.py b/contrib/python/ipython/py3/IPython/utils/py3compat.py
index c758787300..34af4c58f4 100644
--- a/contrib/python/ipython/py3/IPython/utils/py3compat.py
+++ b/contrib/python/ipython/py3/IPython/utils/py3compat.py
@@ -3,13 +3,8 @@
 
 This file is deprecated and will be removed in a future version.
 """
-import functools
-import os
-import sys
-import re
-import shutil
-import types
 import platform
+import builtins as builtin_mod
 
 from .encoding import DEFAULT_ENCODING
 
@@ -18,6 +13,7 @@ def decode(s, encoding=None):
     encoding = encoding or DEFAULT_ENCODING
     return s.decode(encoding, "replace")
 
+
 def encode(u, encoding=None):
     encoding = encoding or DEFAULT_ENCODING
     return u.encode(encoding, "replace")
@@ -28,36 +24,6 @@ def cast_unicode(s, encoding=None):
         return decode(s, encoding)
     return s
 
-def cast_bytes(s, encoding=None):
-    if not isinstance(s, bytes):
-        return encode(s, encoding)
-    return s
-
-def buffer_to_bytes(buf):
-    """Cast a buffer object to bytes"""
-    if not isinstance(buf, bytes):
-        buf = bytes(buf)
-    return buf
-
-def _modify_str_or_docstring(str_change_func):
-    @functools.wraps(str_change_func)
-    def wrapper(func_or_str):
-        if isinstance(func_or_str, (str,)):
-            func = None
-            doc = func_or_str
-        else:
-            func = func_or_str
-            doc = func.__doc__
-
-        # PYTHONOPTIMIZE=2 strips docstrings, so they can disappear unexpectedly
-        if doc is not None:
-            doc = str_change_func(doc)
-
-        if func:
-            func.__doc__ = doc
-            return func
-        return doc
-    return wrapper
 
 def safe_unicode(e):
     """unicode(e) with various fallbacks. Used for exceptions, which may not be
@@ -73,119 +39,29 @@ def safe_unicode(e):
     except UnicodeError:
         pass
 
-    return u'Unrecoverably corrupt evalue'
-
-# shutil.which from Python 3.4
-def _shutil_which(cmd, mode=os.F_OK | os.X_OK, path=None):
-    """Given a command, mode, and a PATH string, return the path which
-    conforms to the given mode on the PATH, or None if there is no such
-    file.
+    return "Unrecoverably corrupt evalue"
 
-    `mode` defaults to os.F_OK | os.X_OK. `path` defaults to the result
-    of os.environ.get("PATH"), or can be overridden with a custom search
-    path.
-
-    This is a backport of shutil.which from Python 3.4
-    """
-    # Check that a given file can be accessed with the correct mode.
-    # Additionally check that `file` is not a directory, as on Windows
-    # directories pass the os.access check.
-    def _access_check(fn, mode):
-        return (os.path.exists(fn) and os.access(fn, mode)
-                and not os.path.isdir(fn))
-
-    # If we're given a path with a directory part, look it up directly rather
-    # than referring to PATH directories. This includes checking relative to the
-    # current directory, e.g. ./script
-    if os.path.dirname(cmd):
-        if _access_check(cmd, mode):
-            return cmd
-        return None
-
-    if path is None:
-        path = os.environ.get("PATH", os.defpath)
-    if not path:
-        return None
-    path = path.split(os.pathsep)
-
-    if sys.platform == "win32":
-        # The current directory takes precedence on Windows.
-        if not os.curdir in path:
-            path.insert(0, os.curdir)
-
-        # PATHEXT is necessary to check on Windows.
-        pathext = os.environ.get("PATHEXT", "").split(os.pathsep)
-        # See if the given file matches any of the expected path extensions.
-        # This will allow us to short circuit when given "python.exe".
-        # If it does match, only test that one, otherwise we have to try
-        # others.
-        if any(cmd.lower().endswith(ext.lower()) for ext in pathext):
-            files = [cmd]
-        else:
-            files = [cmd + ext for ext in pathext]
-    else:
-        # On other platforms you don't have things like PATHEXT to tell you
-        # what file suffixes are executable, so just pass on cmd as-is.
-        files = [cmd]
-
-    seen = set()
-    for dir in path:
-        normdir = os.path.normcase(dir)
-        if not normdir in seen:
-            seen.add(normdir)
-            for thefile in files:
-                name = os.path.join(dir, thefile)
-                if _access_check(name, mode):
-                    return name
-    return None
-
-PY3 = True
 
 # keep reference to builtin_mod because the kernel overrides that value
 # to forward requests to a frontend.
-def input(prompt=''):
+def input(prompt=""):
     return builtin_mod.input(prompt)
 
-builtin_mod_name = "builtins"
-import builtins as builtin_mod
-
-
-which = shutil.which
-
-def isidentifier(s, dotted=False):
-    if dotted:
-        return all(isidentifier(a) for a in s.split("."))
-    return s.isidentifier()
-
-getcwd = os.getcwd
-
-MethodType = types.MethodType
 
 def execfile(fname, glob, loc=None, compiler=None):
     loc = loc if (loc is not None) else glob
-    with open(fname, 'rb') as f:
+    with open(fname, "rb") as f:
         compiler = compiler or compile
-        exec(compiler(f.read(), fname, 'exec'), glob, loc)
-
-# Refactor print statements in doctests.
-_print_statement_re = re.compile(r"\bprint (?P<expr>.*)$", re.MULTILINE)
-
-# Abstract u'abc' syntax:
-@_modify_str_or_docstring
-def u_format(s):
-    """"{u}'abc'" --> "'abc'" (Python 3)
+        exec(compiler(f.read(), fname, "exec"), glob, loc)
 
-    Accepts a string or a function, so it can be used as a decorator."""
-    return s.format(u='')
 
-
-PY2 = not PY3
 PYPY = platform.python_implementation() == "PyPy"
 
 # Cython still rely on that as a Dec 28 2019
 # See https://github.com/cython/cython/pull/3291 and
 # https://github.com/ipython/ipython/issues/12068
 def no_code(x, encoding=None):
-        return x
-unicode_to_str = cast_bytes_py2 = no_code
+    return x
 
+
+unicode_to_str = cast_bytes_py2 = no_code