Drop compatibility with Python 3.2

Python 3.3 now is the minimum (Pygments 2.0 no longer supports Python
3.2 anyway).

.travis.yml

@@ -1,12 +1,10 @@
 language: python
 python:
-  - "3.2"
   - "3.3"
   - "3.4"
 install:
   - pip install --use-wheel --use-mirrors -r build-requirements.txt
   - pip install --use-wheel --use-mirrors coveralls
-  - python -c 'import sys; sys.exit(sys.version_info[:2] <= (3, 2))' || pip install --use-wheel --use-mirrors --upgrade "pygments==1.6"
 script:
   - coverage run --source=py1 setup.py test
   # Checks that pip can install the package.

build-requirements.txt

@@ -1,4 +1,3 @@
-mock
 sphinx>=1.3
 sphinx_rtd_theme>=0.1.8
 

tests/test_main.py

@@ -29,11 +29,7 @@
 
 import io
 import unittest
-try:
-    from unittest import mock
-except ImportError:
-    # Allows compatibility with Python < 3.3 if mock is installed.
-    import mock
+from unittest import mock
 import sys
 
 from py1 import constants

tests/test_user_code_template.py

@@ -26,11 +26,7 @@
 
 import io
 import unittest
-try:
-    from unittest import mock
-except ImportError:
-    # Allows compatibility with Python < 3.3 if mock is installed.
-    import mock
+from unittest import mock
 import sys
 
 from py1 import user_code_template