handle bad python install

gclient.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Meta checkout manager supporting both Subversion and GIT.
 
 Files
   .gclient      : Current client configuration, written by 'config' command.
                   Format is a Python script defining 'solutions', a list whose
@@ skipping 1701 matching lines @@
 
 
 def Main(argv):
   """Doesn't parse the arguments here, just find the right subcommand to
   execute."""
   if sys.hexversion < 0x02060000:
     print >> sys.stderr, (
         '\nYour python version %s is unsupported, please upgrade.\n' %
         sys.version.split(' ', 1)[0])
     return 2
+  if not sys.executable:
+    print >> sys.stderr, (
+        '\nPython cannot find the location of it\'s own executable.\n')
+    return 2
   colorama.init()
   try:
     # Make stdout auto-flush so buildbot doesn't kill us during lengthy
     # operations. Python as a strong tendency to buffer sys.stdout.
     sys.stdout = gclient_utils.MakeFileAutoFlush(sys.stdout)
     # Make stdout annotated with the thread ids.
     sys.stdout = gclient_utils.MakeFileAnnotated(sys.stdout)
     # Do it late so all commands are listed.
     # Unused variable 'usage'
     # pylint: disable=W0612
@@ skipping 18 matching lines @@
   except (gclient_utils.Error, subprocess2.CalledProcessError), e:
     print >> sys.stderr, 'Error: %s' % str(e)
     return 1
 
 
 if '__main__' == __name__:
   fix_encoding.fix_encoding()
   sys.exit(Main(sys.argv[1:]))
 
 # vim: ts=2:sw=2:tw=80:et: