Drop support for Python<3.4.

3 files changed, 19 insertions, 30 deletions

diff --git a/semantic_version/base.py b/semantic_version/base.py
index 8d9098d..93291e7 100644
--- a/semantic_version/base.py
+++ b/semantic_version/base.py
@@ -2,15 +2,10 @@
 # Copyright (c) The python-semanticversion project
 # This code is distributed under the two-clause BSD License.
 
-from __future__ import unicode_literals
-
 import functools
 import re
 
 
-from .compat import base_cmp
-
-
 def _to_int(value):
     try:
         return int(value), True
@@ -25,6 +20,17 @@ def _has_leading_zero(value):
             and value != '0')
 
 
+def base_cmp(x, y):
+    if x == y:
+        return 0
+    elif x > y:
+        return 1
+    elif x < y:
+        return -1
+    else:
+        return NotImplemented
+
+
 def identifier_cmp(a, b):
     """Compare two identifier (for pre-release/build components)."""
 
@@ -68,7 +74,7 @@ def identifier_list_cmp(a, b):
     return base_cmp(len(a), len(b))
 
 
-class Version(object):
+class Version:
 
     version_re = re.compile(r'^(\d+)\.(\d+)\.(\d+)(?:-([0-9a-zA-Z.-]+))?(?:\+([0-9a-zA-Z.-]+))?$')
     partial_version_re = re.compile(r'^(\d+)(?:\.(\d+)(?:\.(\d+))?)?(?:-([0-9a-zA-Z.-]*))?(?:\+([0-9a-zA-Z.-]*))?$')
@@ -82,8 +88,7 @@ class Version(object):
             patch=None,
             prerelease=None,
             build=None,
-            partial=False,
-    ):
+            partial=False):
         has_text = version_string is not None
         has_parts = not (major is minor is patch is prerelease is build is None)
         if not has_text ^ has_parts:
@@ -467,7 +472,7 @@ class Version(object):
         return self.__compare_helper(other, lambda x: x >= 0, notimpl_target=False)
 
 
-class SpecItem(object):
+class SpecItem:
     """A requirement specification."""
 
     KIND_ANY = '*'
@@ -570,7 +575,7 @@ class SpecItem(object):
         return hash((self.kind, self.spec))
 
 
-class Spec(object):
+class Spec:
     def __init__(self, *specs_strings):
         subspecs = [self.parse(spec) for spec in specs_strings]
         self.specs = sum(subspecs, ())
diff --git a/semantic_version/compat.py b/semantic_version/compat.py
deleted file mode 100644
index b17468f..0000000
--- a/semantic_version/compat.py
+++ /dev/null
@@ -1,15 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright (c) The python-semanticversion project
-# This code is distributed under the two-clause BSD License.
-
-
-def base_cmp(x, y):
-    if x == y:
-        return 0
-    elif x > y:
-        return 1
-    elif x < y:
-        return -1
-    else:
-        # Fix Py2's behavior: cmp(x, y) returns -1 for unorderable types
-        return NotImplemented
diff --git a/semantic_version/django_fields.py b/semantic_version/django_fields.py
index 39a6c4b..2e9be69 100644
--- a/semantic_version/django_fields.py
+++ b/semantic_version/django_fields.py
@@ -2,7 +2,6 @@
 # Copyright (c) The python-semanticversion project
 # This code is distributed under the two-clause BSD License.
 
-from __future__ import unicode_literals
 
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
@@ -14,7 +13,7 @@ class SemVerField(models.CharField):
 
     def __init__(self, *args, **kwargs):
         kwargs.setdefault('max_length', 200)
-        super(SemVerField, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
 
     def from_db_value(self, value, expression, connection, context):
         """Convert from the database format.
@@ -36,7 +35,7 @@ class SemVerField(models.CharField):
         return str(value)
 
     def run_validators(self, value):
-        return super(SemVerField, self).run_validators(str(value))
+        return super().run_validators(str(value))
 
 
 class VersionField(SemVerField):
@@ -48,11 +47,11 @@ class VersionField(SemVerField):
     def __init__(self, *args, **kwargs):
         self.partial = kwargs.pop('partial', False)
         self.coerce = kwargs.pop('coerce', False)
-        super(VersionField, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
 
     def deconstruct(self):
         """Handle django.db.migrations."""
-        name, path, args, kwargs = super(VersionField, self).deconstruct()
+        name, path, args, kwargs = super().deconstruct()
         kwargs['partial'] = self.partial
         kwargs['coerce'] = self.coerce
         return name, path, args, kwargs