Remove Python 2 stuff:

file header -*- coding: utf-8 -*-
strings with u-prefix e.g. u'string'

docs/index.rst

@@ -340,11 +340,11 @@ expression yourself like this:
         # Sort emoji by length to make sure multi-character emojis are
         # matched first
         emojis = sorted(emoji.EMOJI_DATA, key=len, reverse=True)
-        pattern = u'(' + u'|'.join(re.escape(u) for u in emojis) + u')'
+        pattern = '(' + '|'.join(re.escape(u) for u in emojis) + ')'
         return re.compile(pattern)
 
     exp = get_emoji_regexp()
-    print(exp.sub(repl='[emoji]', string=u'A 🏌️‍♀️ is eating a 🥐'))
+    print(exp.sub(repl='[emoji]', string='A 🏌️‍♀️ is eating a 🥐'))
 ..
 
 Output:

emoji/core.py

@@ -187,9 +187,9 @@ def demojize(
         >>> import emoji
         >>> print(emoji.emojize("Python is fun :thumbs_up:"))
         Python is fun 👍
-        >>> print(emoji.demojize(u"Python is fun 👍"))
+        >>> print(emoji.demojize("Python is fun 👍"))
         Python is fun :thumbs_up:
-        >>> print(emoji.demojize(u"Unicode is tricky 😯", delimiters=("__", "__")))
+        >>> print(emoji.demojize(icode is tricky 😯", delimiters=("__", "__")))
         Unicode is tricky __hushed_face__
 
     :param string: String contains Unicode characters. MUST BE UNICODE.

emoji/unicode_codes/__init__.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 from emoji.unicode_codes.data_dict import *
 
 __all__ = [