Remove python2 support.

setup.py

@@ -16,42 +16,40 @@
 
 """Setup script."""
 
-from setuptools import setup, find_packages
-import textfsm
 # To use a consistent encoding
 from codecs import open
 from os import path
+from setuptools import find_packages, setup
+import textfsm
 
 here = path.abspath(path.dirname(__file__))
 
 # Get the long description from the README file
-with open(path.join(here, 'README.md'), encoding="utf8") as f:
-    long_description = f.read()
+with open(path.join(here, 'README.md'), encoding='utf8') as f:
+  long_description = f.read()
 
-setup(name='textfsm',
-      maintainer='Google',
-      maintainer_email='[email protected]',
-      version=textfsm.__version__,
-      description='Python module for parsing semi-structured text into python tables.',
-      long_description=long_description,
-      long_description_content_type='text/markdown',
-      url='https://github.com/google/textfsm',
-      license='Apache License, Version 2.0',
-      classifiers=[
-          'Development Status :: 5 - Production/Stable',
-          'Intended Audience :: Developers',
-          'License :: OSI Approved :: Apache Software License',
-          'Operating System :: OS Independent',
-          'Programming Language :: Python :: 2',
-          'Programming Language :: Python :: 3',
-          'Topic :: Software Development :: Libraries'],
-      packages=['textfsm'],
-      entry_points={
-        'console_scripts': [
-            'textfsm=textfsm.parser:main'
-        ]
-      },      
-      include_package_data=True,
-      package_data={'textfsm': ['../testdata/*']},
-      install_requires=['six', 'future'],
-     )
+setup(
+    name='textfsm',
+    maintainer='Google',
+    maintainer_email='[email protected]',
+    version=textfsm.__version__,
+    description=(
+        'Python module for parsing semi-structured text into python tables.'
+    ),
+    long_description=long_description,
+    long_description_content_type='text/markdown',
+    url='https://github.com/google/textfsm',
+    license='Apache License, Version 2.0',
+    classifiers=[
+        'Development Status :: 5 - Production/Stable',
+        'Intended Audience :: Developers',
+        'License :: OSI Approved :: Apache Software License',
+        'Operating System :: OS Independent',
+        'Programming Language :: Python :: 3',
+        'Topic :: Software Development :: Libraries',
+    ],
+    packages=['textfsm'],
+    entry_points={'console_scripts': ['textfsm=textfsm.parser:main']},
+    include_package_data=True,
+    package_data={'textfsm': ['../testdata/*']},
+)

tests/clitable_test.py

@@ -16,19 +16,12 @@
 
 """Unittest for clitable script."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-from __future__ import unicode_literals
-
 import copy
+import io
 import os
 import re
 import unittest
-
-from io import StringIO
 from textfsm import clitable
-from textfsm import copyable_regex_object
 
 
 class UnitTestIndexTable(unittest.TestCase):
@@ -47,8 +40,7 @@ def testParseIndex(self):
 
     self.assertEqual(indx.compiled.size, 3)
     for col in ('Command', 'Vendor', 'Template', 'Hostname'):
-      self.assertTrue(isinstance(indx.compiled[1][col],
-                                 copyable_regex_object.CopyableRegexObject))
+      self.assertIsInstance(indx.compiled[1][col], re.Pattern)
 
     self.assertTrue(indx.compiled[1]['Hostname'].match('random string'))
 
@@ -66,8 +58,7 @@ def _PreCompile(key, value):
     indx = clitable.IndexTable(_PreParse, _PreCompile, file_path)
     self.assertEqual(indx.index[2]['Template'], 'CLITABLE_TEMPLATEC')
     self.assertEqual(indx.index[1]['Command'], 'sh[[ow]] ve[[rsion]]')
-    self.assertTrue(isinstance(indx.compiled[1]['Hostname'],
-                               copyable_regex_object.CopyableRegexObject))
+    self.assertIsInstance(indx.compiled[1]['Hostname'], re.Pattern)
     self.assertFalse(indx.compiled[1]['Command'])
 
   def testGetRowMatch(self):
@@ -101,7 +92,7 @@ def setUp(self):
                      'Start\n'
                      '  ^${Col1} ${Col2} ${Col3} -> Record\n'
                      '\n')
-    self.template_file = StringIO(self.template)
+    self.template_file = io.StringIO(self.template)
 
   def testCompletion(self):
     """Tests '[[]]' syntax replacement."""
@@ -123,7 +114,7 @@ def testCliCompile(self):
 
     self.assertEqual('sh(o(w)?)? ve(r(s(i(o(n)?)?)?)?)?',
                      self.clitable.index.index[1]['Command'])
-    self.assertEqual(None, self.clitable.index.compiled[1]['Template'])
+    self.assertIsNone(self.clitable.index.compiled[1]['Template'])
     self.assertTrue(
         self.clitable.index.compiled[1]['Command'].match('sho vers'))
 
@@ -267,7 +258,7 @@ def testTableSort(self):
                      'Start\n'
                      '  ^${Col1} ${Col2} ${Col3} -> Record\n'
                      '\n')
-    self.template_file = StringIO(self.template)
+    self.template_file = io.StringIO(self.template)
     self.clitable._TemplateNamesToFiles = lambda t: [self.template_file]
     self.clitable.ParseCmd(self.input_data + input_data2,
                            attributes={'Command': 'sh ver'})

tests/terminal_test.py

@@ -17,13 +17,6 @@
 
 """Unittest for terminal module."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-from __future__ import unicode_literals
-
-from builtins import range
-from builtins import object
 import sys
 import unittest
 
@@ -39,6 +32,7 @@ def setUp(self):
     self.terminal_orig = terminal.TerminalSize
 
   def tearDown(self):
+    super(TerminalTest, self).tearDown()
     terminal.os.environ = self.environ_orig
     terminal.os.open = self.open_orig
     terminal.TerminalSize = self.terminal_orig
@@ -157,6 +151,7 @@ def setUp(self):
     self.p = terminal.Pager()
 
   def tearDown(self):
+    super(PagerTest, self).tearDown()
     terminal.Pager._GetCh = self.get_ch_orig
     terminal.TerminalSize = self.ts_orig
     sys.stdout = sys.__stdout__
@@ -180,7 +175,7 @@ def testPage(self):
     sys.stdout.output = ''
     self.p = terminal.Pager()
     self.p._text = ''
-    for i in range(10):
+    for _ in range(10):
       self.p._text += 'a' * 100 + '\n'
     self.p.Page()
     self.assertEqual(20, sys.stdout.CountLines())