Remove an unecessary assertion fixes #104

--HG--
branch : distribute
extra : rebase_source : e0a1a2a18085d418b039852b57b5adf6cc19017f

CHANGES.txt

@@ -24,6 +24,8 @@ CHANGES
   (platform.mac_ver() fails)
 * Issue 103: test_get_script_header_jython_workaround not run
   anymore under py3 with C or POSIX local. Contributed by Arfrever.
+* Issue 104: remvoved the assertion when the installation fails,
+  with a nicer message for the end user.
 
 -----
 0.6.8

distribute_setup.py

@@ -81,7 +81,9 @@ def _install(tarball):
 
         # installing
         log.warn('Installing Distribute')
-        assert _python_cmd('setup.py', 'install')
+        if not _python_cmd('setup.py', 'install'):
+            log.warn('Something went wrong during the installation.')
+            log.warn('See the error message above.')
     finally:
         os.chdir(old_wd)