Drop support for Python 3 < 3.4. This is because pkg_resources (which get used by setuptools and mock) no longer supports 3.3 and earlier.

.travis.yml

@@ -8,7 +8,6 @@ python:
   - 3.5
   - 3.6
   - 3.6-dev
-  - pypy3.3-5.2-alpha1
   - pypy3.5
 
 env:
@@ -19,8 +18,6 @@ matrix:
   include:
     - python: pypy
       env: TEST_REQUIRE=fastimport
-    - python: 3.3
-      env: TEST_REQUIRE=fastimport
     - python: 3.7
       env: TEST_REQUIRE=fastimport
       dist: xenial

NEWS

@@ -1,5 +1,11 @@
 0.19.7	UNRELEASED
 
+ CHANGES
+
+  * Drop support for Python 3 < 3.4. This is because
+    pkg_resources (which get used by setuptools and mock)
+    no longer supports 3.3 and earlier. (Jelmer Vernooij)
+
  IMPROVEMENTS
 
   * Support ``depth`` argument to ``GitClient.fetch_pack`` and support

appveyor.yml

@@ -10,15 +10,6 @@ environment:
       PYTHON_VERSION: "2.7.x"
       PYTHON_ARCH: "64"
 
-    - PYTHON: "C:\\Python33"
-      PYTHON_VERSION: "3.3.x"
-      PYTHON_ARCH: "32"
-
-    - PYTHON: "C:\\Python33-x64"
-      PYTHON_VERSION: "3.3.x"
-      PYTHON_ARCH: "64"
-      DISTUTILS_USE_SDK: "1"
-
     - PYTHON: "C:\\Python34"
       PYTHON_VERSION: "3.4.x"
       PYTHON_ARCH: "32"

setup.py

@@ -110,7 +110,6 @@ setup(name='dulwich',
           'Development Status :: 4 - Beta',
           'License :: OSI Approved :: Apache Software License',
           'Programming Language :: Python :: 2.7',
-          'Programming Language :: Python :: 3.3',
           'Programming Language :: Python :: 3.4',
           'Programming Language :: Python :: 3.5',
           'Programming Language :: Python :: 3.6',