Fix member lookup to be more stable.

gclient.py

 #!/usr/bin/env python
 # Copyright (c) 2011 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 567 matching lines @@
 
   def file_list(self):
     result = self._file_list[:]
     for d in self.dependencies:
       result.extend(d.file_list())
     return result
 
   def __str__(self):
     out = []
     for i in ('name', 'url', 'parsed_url', 'safesync_url', 'custom_deps',
-              'custom_vars', 'deps_hooks', '_file_list', 'should_process',
+              'custom_vars', 'deps_hooks', 'file_list', 'should_process',
               'processed', 'hooks_ran', 'deps_parsed', 'requirements'):
-      # 'deps_file'
-      if self.__dict__[i]:
-        out.append('%s: %s' % (i, self.__dict__[i]))
+      # First try the native property if it exists.
+      if hasattr(self, '_' + i):
+        value = getattr(self, '_' + i, False)
+      else:
+        value = getattr(self, i, False)
+      if value:
+        out.append('%s: %s' % (i, value))
 
     for d in self.dependencies:
       out.extend(['  ' + x for x in str(d).splitlines()])
       out.append('')
     return '\n'.join(out)
 
   def __repr__(self):
     return '%s: %s' % (self.name, self.url)
 
   def hierarchy(self):
@@ skipping 755 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: