Test failures with Python 3.2 and enabled warnings

[Arfrever Frehtes Taifersar Arahesis]

12 tests fail with Python 3.2 and enabled warnings. Warnings are disabled by default in Python 2.7 and >=3.2. Warnings can be enabled by -Wd option or PYTHONWARNINGS="d" environmental variable.

'contents = open(path).read()' should be changed to 'file = open(path); contents = file.read(); file.close()' or 'with open(path) as file: contents = file.read()'.

Example failure:
$ PYTHONPATH="." python3.2 -Wd test/auto.py
..F..F....FFF..FFFFF.FF.
======================================================================
FAIL: test_dbus (__main__.T)
D-BUS configuration and service files
----------------------------------------------------------------------
Traceback (most recent call last):
  File "test/auto.py", line 149, in test_dbus
    self.assertEqual(e, '')
AssertionError: "/tmp/python-distutils-extra-2.32/DistUtilsExtra/auto.py:175: ResourceWarning: u [truncated]... != ''
- /tmp/python-distutils-extra-2.32/DistUtilsExtra/auto.py:175: ResourceWarning: unclosed file <_io.TextIOWrapper name='daemon/defaults.conf' mode='r' encoding='UTF-8'>
- if '-//freedesktop//DTD D-BUS Bus Configuration' in open(f).read():
- /tmp/python-distutils-extra-2.32/DistUtilsExtra/auto.py:175: ResourceWarning: unclosed file <_io.TextIOWrapper name='daemon/com.example.foo.conf' mode='r' encoding='UTF-8'>
- if '-//freedesktop//DTD D-BUS Bus Configuration' in open(f).read():
- /tmp/python-distutils-extra-2.32/DistUtilsExtra/auto.py:185: ResourceWarning: unclosed file <_io.TextIOWrapper name='daemon/com.example.foo.service' mode='r' encoding='UTF-8'>
- lines = [l.strip() for l in open(f).readlines()]
- /tmp/python-distutils-extra-2.32/DistUtilsExtra/auto.py:185: ResourceWarning: unclosed file <_io.TextIOWrapper name='gui/com.example.foo.gui.service' mode='r' encoding='UTF-8'>
- lines = [l.strip() for l in open(f).readlines()]
- /tmp/python-distutils-extra-2.32/DistUtilsExtra/auto.py:185: ResourceWarning: unclosed file <_io.TextIOWrapper name='stuff/super.service' mode='r' encoding='UTF-8'>
- lines = [l.strip() for l in open(f).readlines()]