Use relative imports in a few places where I noticed the need.

(Ideally, all packages in Python 2.5 will use the relative import
syntax for all their relative import needs.)

Lib/distutils/sysconfig.py

@@ -16,7 +16,7 @@ import re
 import string
 import sys
 
-from errors import DistutilsPlatformError
+from .errors import DistutilsPlatformError
 
 # These are needed in a couple of spots, so just compute them once.
 PREFIX = os.path.normpath(sys.prefix)

Lib/encodings/__init__.py

@@ -27,7 +27,8 @@ Written by Marc-Andre Lemburg (mal@lemburg.com).
 
 """#"
 
-import codecs, types, aliases
+import codecs, types
+from . import aliases
 
 _cache = {}
 _unknown = '--unknown--'