gae error

#environment: ubuntu-x32bit / python2.7 / gae 1.8.1
$ python dev_appserver.py
Traceback (most recent call last):
  File "dev_appserver.py", line 182, in <module>
    _run_file(__file__, globals())
  File "dev_appserver.py", line 178, in _run_file
    execfile(script_path, globals_)
  File "/home/adminuser/dev/apps/gae/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 30, in <module>
    from google.appengine.datastore import datastore_stub_util
  File "/home/adminuser/dev/apps/gae/google_appengine/google/appengine/datastore/datastore_stub_util.py", line 193
    datastore_types.SCATTER_SPECIAL_PROPERTY:.get(prefix, (0, et_bdatastore#!/usr/bihOPERTY:.get(preob.Pth the actual:
                                             ^
SyntaxError: invalid syntax

#gae dev_appserver.py error ubuntu

similar error:
http://stackoverflow.com/questions/5623057/error-with-dev-appserver-py-of-google-app-engine
http://stackoverflow.com/questions/15766629/google-app-engine-dev-appserver-py-error
http://stackoverflow.com/questions/16798812/how-can-i-fix-this-error-when-executing-gae-sdk-in-ubuntu
http://golangtutorials.blogspot.in/2012/09/filtering-appengine-devappserver-logs.html

Solution:
raised the issue here: http://stackoverflow.com/questions/19312625/error-running-gae-dev-appserver-py-on-ubuntu
as per suggested did extracted the gae (same version)

got a new Traceback

Traceback (most recent call last):
  File "google_appengine/dev_appserver.py", line 182, in <module>
    _run_file(__file__, globals())
  File "google_appengine/dev_appserver.py", line 178, in _run_file
    execfile(script_path, globals_)
  File "/home/adminuser/dev/apps/gae/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 30, in <module>
    from google.appengine.datastore import datastore_stub_util
  File "/home/adminuser/dev/apps/gae/google_appengine/google/appengine/datastore/datastore_stub_util.py", line 194

Re Downloaded New Version: 1.8.5
Probably seemed to solved as didn't get the above error however this time got a so called common error as Unable to bind localhost which could seem to be an issue with TCP .

Log as follows:

adminuser@adminuser-VirtualBox:~/dev/apps/gae$ python google_appengine/dev_appserver.py helloworld
INFO     2013-10-11 08:52:52,923 sdk_update_checker.py:245] Checking for updates to the SDK.
INFO     2013-10-11 08:52:53,517 sdk_update_checker.py:289] This SDK release is newer than the advertised release.
WARNING  2013-10-11 08:52:53,944 simple_search_stub.py:1009] Could not read search indexes from /tmp/appengine.new-project-template.adminuser/search_indexes
INFO     2013-10-11 08:52:53,952 api_server.py:138] Starting API server at: http://localhost:41936
INFO     2013-10-11 08:52:53,983 api_server.py:524] Applying all pending transactions and saving the datastore
INFO     2013-10-11 08:52:53,986 api_server.py:527] Saving search indexes
Traceback (most recent call last):
  File "google_appengine/dev_appserver.py", line 197, in <module>
    _run_file(__file__, globals())
  File "google_appengine/dev_appserver.py", line 193, in _run_file
    execfile(script_path, globals_)
  File "/home/adminuser/dev/apps/gae/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 855, in <module>
    main()
  File "/home/adminuser/dev/apps/gae/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 848, in main
    dev_server.start(options)
  File "/home/adminuser/dev/apps/gae/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 711, in start
    self._dispatcher.start(options.api_host, apis.port, request_data)
  File "/home/adminuser/dev/apps/gae/google_appengine/google/appengine/tools/devappserver2/dispatcher.py", line 165, in start
    _module.start()
  File "/home/adminuser/dev/apps/gae/google_appengine/google/appengine/tools/devappserver2/module.py", line 943, in start
    self._balanced_module.start()
  File "/home/adminuser/dev/apps/gae/google_appengine/google/appengine/tools/devappserver2/wsgi_server.py", line 298, in start
    self._start_all_fixed_port(host_ports)
  File "/home/adminuser/dev/apps/gae/google_appengine/google/appengine/tools/devappserver2/wsgi_server.py", line 335, in _start_all_fixed_port
    raise BindError('Unable to bind %s:%s' % self.bind_addr)
google.appengine.tools.devappserver2.wsgi_server.BindError: Unable to bind localhost:8080


Solution : g--> gae BindError Unable to bind localhost ubuntu

http://stackoverflow.com/questions/16688582/failed-to-start-devlopment-server-binderror-unable-to-find-a-consistent-port

Start dev_server.py with  addition flags ---> python dev_appserver.py --port 8888 --host 127.0.0.1 /path/to_app