Remove u_format decorator

Docstrings do not need support for "u" prefixes in results.

2 files changed, 2 insertions, 49 deletions

diff --git a/natsort/compat/py23.py b/natsort/compat/py23.py
index 532ecf6..bac2781 100644
--- a/natsort/compat/py23.py
+++ b/natsort/compat/py23.py
@@ -54,47 +54,3 @@ else:
     py23_zip = itertools.izip
     py23_map = itertools.imap
     py23_filter = itertools.ifilter
-
-
-# This function is intended to decorate other functions that will modify
-# either a string directly, or a function's docstring.
-def _modify_str_or_docstring(str_change_func):
-    @functools.wraps(str_change_func)
-    def wrapper(func_or_str):
-        if isinstance(func_or_str, py23_basestring):
-            func = None
-            doc = func_or_str
-        else:
-            func = func_or_str
-            doc = func.__doc__
-
-        if doc is not None:
-            doc = str_change_func(doc)
-
-        if func:
-            func.__doc__ = doc
-            return func
-        return doc
-
-    return wrapper
-
-
-# Properly modify a doctstring to either have the unicode literal or not.
-if PY_VERSION >= 3:
-    # Abstract u'abc' syntax:
-    @_modify_str_or_docstring
-    def u_format(s):
-        """"{u}'abc'" --> "'abc'" (Python 3)
-
-        Accepts a string or a function, so it can be used as a decorator."""
-        return s.format(u="")
-
-
-else:
-    # Abstract u'abc' syntax:
-    @_modify_str_or_docstring
-    def u_format(s):
-        """"{u}'abc'" --> "u'abc'" (Python 2)
-
-        Accepts a string or a function, so it can be used as a decorator."""
-        return s.format(u="u")
diff --git a/natsort/utils.py b/natsort/utils.py
index e67913c..d062da2 100644
--- a/natsort/utils.py
+++ b/natsort/utils.py
@@ -54,7 +54,6 @@ from natsort.compat.py23 import (
     py23_filter,
     py23_map,
     py23_str,
-    u_format,
 )
 from natsort.ns_enum import NS_DUMB, ns
 from natsort.unicode_numbers import digits_no_decimals, numeric_no_decimals
@@ -634,7 +633,6 @@ lower_function = methodcaller("casefold" if NEWPY else "lower")
 
 
 # noinspection PyIncorrectDocstring
-@u_format
 def groupletters(x, _low=lower_function):
     """
     Double all characters, making doubled letters lowercase.
@@ -651,7 +649,7 @@ def groupletters(x, _low=lower_function):
     --------
 
         >>> groupletters("Apple")
-        {u}'aAppppllee'
+        'aAppppllee'
 
     """
     return "".join(ichain.from_iterable((_low(y), y) for y in x))
@@ -718,7 +716,6 @@ def do_decoding(s, encoding):
 
 
 # noinspection PyIncorrectDocstring
-@u_format
 def path_splitter(s, _d_match=re.compile(r"\.\d").match):
     """
     Split a string into its path components.
@@ -738,7 +735,7 @@ def path_splitter(s, _d_match=re.compile(r"\.\d").match):
     --------
 
         >>> tuple(path_splitter("this/thing.ext"))
-        ({u}'this', {u}'thing', {u}'.ext')
+        ('this', 'thing', '.ext')
 
     """
     if not isinstance(s, PurePath):