old_contents: #! /usr/bin/env python
  
  # Copyright 2016 Hewlett Packard Enterprise Development Company, L.P.
  #
  # Licensed under the Apache License, Version 2.0 (the "License"); you may
  # not use this file except in compliance with the License. You may obtain
  # a copy of the License at
  #
  #    http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  # License for the specific language governing permissions and limitations
  # under the License.
  
  # This script is intended to be run as part of a periodic proposal bot
  # job in OpenStack infrastructure.
  #
  # In order to function correctly, the environment in which the
  # script runs must have
  #   * network access to the review.openstack.org Gerrit API
  #     working directory
  #   * network access to https://git.openstack.org/cgit
  
  import json
  import re
  
  import requests
  
  url = 'https://review.openstack.org/projects/'
  
  # This is what a project looks like
  '''
    "openstack-attic/akanda": {
      "id": "openstack-attic%2Fakanda",
      "state": "READ_ONLY"
    },
  '''
  
  
  def is_in_openstack_namespace(proj):
      return proj.startswith('openstack/')
  
  # Rather than returning a 404 for a nonexistent file, cgit delivers a
  # 0-byte response to a GET request.  It also does not provide a
  # Content-Length in a HEAD response, so the way we tell if a file exists
  # is to check the length of the entire GET response body.
  
  
  def has_tempest_plugin(proj):
      if proj.startswith('openstack/deb-'):
          return False
      r = requests.get(
          "https://git.openstack.org/cgit/%s/plain/setup.cfg" % proj)
      p = re.compile('^tempest\.test_plugins', re.M)
      if p.findall(r.text):
          return True
      else:
          False
  
  r = requests.get(url)
  # Gerrit prepends 4 garbage octets to the JSON, in order to counter
  # cross-site scripting attacks.  Therefore we must discard it so the
  # json library won't choke.
  projects = sorted(filter(is_in_openstack_namespace, json.loads(r.text[4:])))
  
  found_plugins = filter(has_tempest_plugin, projects)
  
  # Every element of the found_plugins list begins with "openstack/".
  # We drop those initial 10 octets when printing the list.
  for project in found_plugins:
      print(project[10:])
  
new_contents: #! /usr/bin/env python
  
  # Copyright 2016 Hewlett Packard Enterprise Development Company, L.P.
  #
  # Licensed under the Apache License, Version 2.0 (the "License"); you may
  # not use this file except in compliance with the License. You may obtain
  # a copy of the License at
  #
  #    http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  # License for the specific language governing permissions and limitations
  # under the License.
  
  # This script is intended to be run as part of a periodic proposal bot
  # job in OpenStack infrastructure.
  #
  # In order to function correctly, the environment in which the
  # script runs must have
  #   * network access to the review.openstack.org Gerrit API
  #     working directory
  #   * network access to https://git.openstack.org/cgit
  
  import json
  import re
  
  try:
      # For Python 3.0 and later
      import urllib
  except ImportError:
      # Fall back to Python 2's urllib2
      import urllib2 as urllib
  
  url = 'https://review.openstack.org/projects/'
  
  # This is what a project looks like
  '''
    "openstack-attic/akanda": {
      "id": "openstack-attic%2Fakanda",
      "state": "READ_ONLY"
    },
  '''
  
  
  def is_in_openstack_namespace(proj):
      return proj.startswith('openstack/')
  
  # Rather than returning a 404 for a nonexistent file, cgit delivers a
  # 0-byte response to a GET request.  It also does not provide a
  # Content-Length in a HEAD response, so the way we tell if a file exists
  # is to check the length of the entire GET response body.
  
  
  def has_tempest_plugin(proj):
      try:
          r = urllib.urlopen("https://git.openstack.org/cgit/%s/plain/setup.cfg"
                             % proj)
      except urllib.HTTPError as err:
          if err.code == 404:
              return False
      p = re.compile('^tempest\.test_plugins', re.M)
      if p.findall(r.read()):
          return True
      else:
          False
  
  r = urllib.urlopen(url)
  # Gerrit prepends 4 garbage octets to the JSON, in order to counter
  # cross-site scripting attacks.  Therefore we must discard it so the
  # json library won't choke.
  projects = sorted(filter(is_in_openstack_namespace, json.loads(r.read()[4:])))
  
  found_plugins = filter(has_tempest_plugin, projects)
  
  # Every element of the found_plugins list begins with "openstack/".
  # We drop those initial 10 octets when printing the list.
  for project in found_plugins:
      print(project[10:])
  
subject: Use urllib2 instead of requests in tempest generate plugin list