remove Python2 support

pyu2f/convenience/localauthenticator.py

@@ -13,7 +13,6 @@
 # limitations under the License.
 
 """Convenience class for U2F signing with local security keys."""
-import six
 import base64
 import sys
 
@@ -36,7 +35,7 @@ def Authenticate(self, app_id, challenge_data,
       device = u2f.GetLocalU2FInterface(origin=self.origin)
     except errors.NoDeviceFoundError:
       print_callback('Please insert your security key and press enter...')
-      six.moves.input()
+      input()
       device = u2f.GetLocalU2FInterface(origin=self.origin)
 
     print_callback('Please touch your security key.\n')

pyu2f/hid/macos.py

@@ -13,11 +13,11 @@
 # limitations under the License.
 
 """Implements HID device interface on MacOS using IOKit and HIDManager."""
-from six.moves import queue
-from six.moves import range
 import ctypes
 import ctypes.util
 import logging
+import queue
+import range
 import sys
 import threading
 

pyu2f/tests/apdu_test.py

@@ -14,17 +14,12 @@
 
 """Tests for pyu2f.apdu."""
 
-from six.moves import range
-import sys
+import range
+import unittest
 
 from pyu2f import apdu
 from pyu2f import errors
 
-if sys.version_info[:2] < (2, 7):
-  import unittest2 as unittest  # pylint: disable=g-import-not-at-top
-else:
-  import unittest  # pylint: disable=g-import-not-at-top
-
 
 class ApduTest(unittest.TestCase):
 

pyu2f/tests/hidtransport_test.py

@@ -14,20 +14,14 @@
 
 """Tests for pyu2f.hidtransport."""
 
-from six.moves import range
-import sys
-
-import mock
+import range
+import unittest
+from unittest import mock
 
 from pyu2f import errors
 from pyu2f import hidtransport
 from pyu2f.tests.lib import util
 
-if sys.version_info[:2] < (2, 7):
-  import unittest2 as unittest  # pylint: disable=g-import-not-at-top
-else:
-  import unittest  # pylint: disable=g-import-not-at-top
-
 
 def MakeKeyboard(path, usage):
   d = {}

pyu2f/tests/util_test.py

@@ -14,16 +14,11 @@
 
 """Tests for pyu2f.tests.lib.util."""
 
-from six.moves import range
-import sys
+import range
+import unittest
 
 from pyu2f.tests.lib import util
 
-if sys.version_info[:2] < (2, 7):
-  import unittest2 as unittest  # pylint: disable=g-import-not-at-top
-else:
-  import unittest  # pylint: disable=g-import-not-at-top
-
 
 class UtilTest(unittest.TestCase):
 

setup.py

@@ -37,12 +37,9 @@
     # Contained modules and scripts.
     packages=setuptools.find_packages(exclude=["pyu2f.tests", "pyu2f.tests.*"]),
     install_requires=[
-        'six',
     ],
     tests_require=[
-        'unittest2>=0.5.1',
         'pyfakefs>=2.4',
-        'mock>=1.0.1',
     ],
     include_package_data=True,
     platforms=["Windows", "Linux", "OS X", "macOS"],

tox.ini

@@ -7,7 +7,5 @@ skipsdist = True
 [testenv]
 deps=pytest
      pyfakefs
-     mock
-     six
 commands=py.test pyu2f/tests/