Removing python2 compatibility. (#518)

lemur/auth/service.py

@@ -8,7 +8,6 @@
 .. moduleauthor:: Kevin Glisson <kglisson@netflix.com>
 
 """
-import sys
 import jwt
 import json
 import binascii
@@ -40,12 +39,8 @@ def get_rsa_public_key(n, e):
     :param e:
     :return: a RSA Public Key in PEM format
     """
-    if sys.version_info >= (3, 0):
     n = int(binascii.hexlify(jwt.utils.base64url_decode(bytes(n, 'utf-8'))), 16)
     e = int(binascii.hexlify(jwt.utils.base64url_decode(bytes(e, 'utf-8'))), 16)
-    else:
-        n = int(binascii.hexlify(jwt.utils.base64url_decode(str(n))), 16)
-        e = int(binascii.hexlify(jwt.utils.base64url_decode(str(e))), 16)
 
     pub = RSAPublicNumbers(e, n).public_key(default_backend())
     return pub.public_bytes(
@@ -128,10 +123,7 @@ def fetch_token_header(token):
         raise jwt.DecodeError('Not enough segments')
 
     try:
-        if sys.version_info >= (3, 0):
         return json.loads(jwt.utils.base64url_decode(header_segment).decode('utf-8'))
-        else:
-            return json.loads(jwt.utils.base64url_decode(header_segment))
     except TypeError as e:
         current_app.logger.exception(e)
         raise jwt.DecodeError('Invalid header padding')

lemur/auth/views.py

@@ -5,7 +5,6 @@
     :license: Apache, see LICENSE for more details.
 .. moduleauthor:: Kevin Glisson <kglisson@netflix.com>
 """
-import sys
 import jwt
 import base64
 import requests
@@ -143,12 +142,8 @@ class Ping(Resource):
         # the secret and cliendId will be given to you when you signup for the provider
         token = '{0}:{1}'.format(args['clientId'], current_app.config.get("PING_SECRET"))
 
-        if sys.version_info >= (3, 0):
         basic = base64.b64encode(bytes(token, 'utf-8'))
         headers = {'authorization': 'basic {0}'.format(basic.decode('utf-8'))}
-        else:
-            basic = base64.b64encode(token, 'utf-8')
-            headers = {'authorization': 'basic {0}'.format(basic)}
 
         # exchange authorization code for access token.
 
@@ -172,10 +167,7 @@ class Ping(Resource):
 
         # validate your token based on the key it was signed with
         try:
-            if sys.version_info >= (3, 0):
             jwt.decode(id_token, secret.decode('utf-8'), algorithms=[algo], audience=args['clientId'])
-            else:
-                jwt.decode(id_token, secret, algorithms=[algo], audience=args['clientId'])
         except jwt.DecodeError:
             return dict(message='Token is invalid'), 403
         except jwt.ExpiredSignatureError:

lemur/common/utils.py

@@ -6,8 +6,6 @@
 
 .. moduleauthor:: Kevin Glisson <kglisson@netflix.com>
 """
-import six
-import sys
 import string
 import random
 
@@ -37,10 +35,7 @@ def get_psuedo_random_string():
 
 
 def parse_certificate(body):
-    if sys.version_info[0] <= 2:
-        return x509.load_pem_x509_certificate(bytes(body), default_backend())
-
-    if isinstance(body, six.string_types):
+    if isinstance(body, str):
         body = body.encode('utf-8')
 
     return x509.load_pem_x509_certificate(body, default_backend())

lemur/manage.py

@@ -477,14 +477,6 @@ def unlock(path=None):
     sys.stdout.write("[+] Keys have been unencrypted!\n")
 
 
-def unicode_(data):
-    import sys
-
-    if sys.version_info.major < 3:
-        return data.decode('UTF-8')
-    return data
-
-
 def print_certificate_details(details):
     """
     Print the certificate details with formatting.

lemur/plugins/lemur_java/tests/test_java.py

@@ -1,5 +1,4 @@
 import pytest
-import six
 
 from lemur.tests.vectors import INTERNAL_CERTIFICATE_A_STR, INTERNAL_PRIVATE_KEY_A_STR
 
@@ -24,7 +23,7 @@ def test_export_truststore_default_password(app):
     actual = p.export(INTERNAL_CERTIFICATE_A_STR, "", "", options)
 
     assert actual[0] == 'jks'
-    assert isinstance(actual[1], six.string_types)
+    assert isinstance(actual[1], str)
     assert isinstance(actual[2], bytes)
 
 
@@ -56,5 +55,5 @@ def test_export_keystore_default_password(app):
     actual = p.export(INTERNAL_CERTIFICATE_A_STR, "", INTERNAL_PRIVATE_KEY_A_STR, options)
 
     assert actual[0] == 'jks'
-    assert isinstance(actual[1], six.string_types)
+    assert isinstance(actual[1], str)
     assert isinstance(actual[2], bytes)

lemur/utils.py

@@ -6,8 +6,6 @@
 .. moduleauthor:: Kevin Glisson <kglisson@netflix.com>
 """
 import os
-import sys
-import six
 from flask import current_app
 from cryptography.fernet import Fernet, MultiFernet
 import sqlalchemy.types as types
@@ -97,11 +95,8 @@ class Vault(types.TypeDecorator):
         if not value:
             return
 
-        if sys.version_info[0] <= 2:
-            return MultiFernet(self.keys).encrypt(bytes(value))
-
         # ensure bytes for fernet
-        if isinstance(value, six.string_types):
+        if isinstance(value, str):
             value = value.encode('utf-8')
 
         return MultiFernet(self.keys).encrypt(value)
@@ -122,6 +117,4 @@ class Vault(types.TypeDecorator):
         if not value:
             return
 
-        if sys.version_info[0] <= 2:
-            return MultiFernet(self.keys).decrypt(value)
         return MultiFernet(self.keys).decrypt(value).decode('utf8')

setup.py

@@ -47,7 +47,6 @@ install_requires = [
     'requests==2.11.1',
     'psycopg2==2.6.1',
     'arrow==0.7.0',
-    'six==1.10.0',
     'gunicorn==19.4.1',
     'marshmallow-sqlalchemy==0.8.0',
     'marshmallow==2.4.0',