fix unused imports and Py2.4-isms in test code

Cython/Debugger/Tests/TestLibCython.py

@@ -2,15 +2,14 @@
 import os
 import re
 import sys
-import uuid
 import shutil
 import warnings
 import textwrap
 import unittest
 import tempfile
 import subprocess
-import distutils.core
-from distutils import sysconfig
+#import distutils.core
+#from distutils import sysconfig
 from distutils import ccompiler
 
 import runtests
@@ -24,7 +23,7 @@ cfuncs_file = os.path.join(root, 'cfuncs.c')
 
 f = open(codefile)
 try:
-    source_to_lineno = dict((line.strip(), i + 1) for i, line in enumerate(f))
+    source_to_lineno = dict([ (line.strip(), i + 1) for i, line in enumerate(f) ])
 finally:
     f.close()