Removed special handling of Python 2 in cli.py and utils.py; added py…

…project.toml to distribution

MANIFEST.in

@@ -1,2 +1,2 @@
-include LICENSE *.txt *.rst segno/*.pyi segno/py.typed
+include LICENSE *.txt *.rst segno/*.pyi segno/py.typed pyproject.toml
 exclude requirements*

segno/cli.py

@@ -24,11 +24,9 @@
 
 
 def _get_args(func):
-    # Python 2 vs Python 3
-    func_code = getattr(func, 'func_code', None) or func.__code__
-    defaults = getattr(func, 'func_defaults', None) or func.__defaults__
+    func_code = func.__code__
     args = func_code.co_varnames[:func_code.co_argcount]
-    return args[-len(defaults):]
+    return args[-len(func.__defaults__):]
 
 
 for ext, func in writers._VALID_SERIALIZERS.items():

segno/utils.py

@@ -11,12 +11,7 @@
 
 DOES NOT belong to the public API.
 """
-from __future__ import absolute_import, unicode_literals
 from itertools import chain, repeat
-try:  # pragma: no cover
-    range = xrange
-except NameError:  # pragma: no cover
-    pass
 from . import consts
 
 __all__ = ('get_default_border_size', 'get_border', 'get_symbol_size',