Drop python 2.x support

README.rst

@@ -30,7 +30,7 @@ The ``eseries`` package is available on the Python Package Index (PyPI):
 .. image:: https://badge.fury.io/py/eseries.svg
     :target: https://badge.fury.io/py/eseries
 
-The package supports Python 3 and is compatible to Python 2.7. To install::
+The package supports Python 3. To install::
 
   $ pip install eseries
 
@@ -151,7 +151,7 @@ Testing
 Testing is performed for all supported versions using ``tox``. You'll need to ensure that the required
 Python versions are available in your environment. For example, if you're using ``pyenv``, do::
 
-  $ pyenv local 2.7 3.6 3.7 3.8 3.9 3.10 3.11 3.12
+  $ pyenv local 3.6 3.7 3.8 3.9 3.10 3.11 3.12
 
 before running ``tox``::
 

eseries/__init__.py

@@ -1,12 +1,3 @@
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-from __future__ import unicode_literals
-try:
-    from future import standard_library
-    standard_library.install_aliases()
-except ImportError:
-    pass
 from .eseries import (ESeries, E3, E6, E12, E24, E48, E96, E192, series, series_keys, series_key_from_name, tolerance,
                       find_greater_than_or_equal, find_greater_than, find_less_than_or_equal, find_less_than,
                       find_nearest, find_nearest_few, erange, open_erange)

eseries/cli.py

@@ -1,15 +1,4 @@
 """The command-line for eseries"""
-from __future__ import print_function
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import unicode_literals
-
-from builtins import int
-try:
-    from future import standard_library
-    standard_library.install_aliases()
-except ImportError:
-    pass
 import os
 import sys
 

eseries/eng.py

@@ -1,14 +1,3 @@
-from __future__ import division
-from __future__ import absolute_import
-from __future__ import print_function
-from __future__ import unicode_literals
-from builtins import str
-from builtins import int
-try:
-    from future import standard_library
-    standard_library.install_aliases()
-except ImportError:
-    pass
 from math import floor, log10
 
 from eseries.eseries import _round_sig

eseries/eseries.py

@@ -1,18 +1,3 @@
-from __future__ import division
-from __future__ import absolute_import
-from __future__ import print_function
-from __future__ import unicode_literals
-from builtins import int
-# from builtins import round
-from builtins import range
-from builtins import map
-from builtins import zip
-from builtins import str
-try:
-    from future import standard_library
-    standard_library.install_aliases()
-except ImportError:
-    pass
 from bisect import bisect_right, bisect_left
 from collections import OrderedDict
 from enum import IntEnum

setup.py

@@ -69,7 +69,6 @@ def find_version(*file_paths):
 
         # Specify the Python versions you support here. In particular, ensure
         # that you indicate whether you support Python 2, Python 3 or both.
-        'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
@@ -93,7 +92,7 @@ def find_version(*file_paths):
     # project is installed. For an analysis of "install_requires" vs pip's
     # requirements files see:
     # https://packaging.python.org/en/latest/requirements.html
-    install_requires=['docopt_subcommands>=4.0', 'future'],
+    install_requires=['docopt_subcommands>=4.0'],
 
     # List additional groups of dependencies here (e.g. development dependencies).
     # You can install these using the following syntax, for example:

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{2.7,3.6,3.7,3.8,3.9,3.10,3.11,3.12}
+envlist = py{3.6,3.7,3.8,3.9,3.10,3.11,3.12}
 
 [testenv]
 passenv = *
@@ -8,5 +8,5 @@ deps =
     hypothesis
 changedir = test
 commands =
-    py{2.7,3.6,3.7,3.8,3.9,3.10,3.11,3.12}: pip install -e {toxinidir}
+    py{3.6,3.7,3.8,3.9,3.10,3.11,3.12}: pip install -e {toxinidir}
     pytest