old_contents: #!/usr/bin/env python3
  import glob
  import os
  import re
  import subprocess
  
  import pytest
  
  
  @pytest.fixture(autouse=True, scope="module")
  def install_certbot_snap(request):
      with pytest.raises(Exception):
          subprocess.check_call(['certbot', '--version'])
      try:
          snap_folder = request.config.getoption("snap_folder")
          snap_arch = request.config.getoption("snap_arch")
          snap_path = glob.glob(os.path.join(snap_folder, 'certbot_*_{0}.snap'.format(snap_arch)))[0]
          subprocess.check_call(['snap', 'install', '--classic', '--dangerous', snap_path])
          subprocess.check_call(['certbot', '--version'])
          yield
      finally:
          subprocess.call(['snap', 'remove', 'certbot'])
  
  
  def test_dns_plugin_install(dns_snap_path):
      """
      Test that each DNS plugin Certbot snap can be installed
      and is usable with the Certbot snap.
      """
      plugin_name = re.match(r'^certbot-(dns-\w+)_.*\.snap$',
                             os.path.basename(dns_snap_path)).group(1)
      snap_name = 'certbot-{0}'.format(plugin_name)
      assert plugin_name not in subprocess.check_output(['certbot', 'plugins', '--prepare'],
                                                        universal_newlines=True)
  
      try:
          subprocess.check_call(['snap', 'install', '--dangerous', dns_snap_path])
          subprocess.check_call(['snap', 'set', 'certbot', 'trust-plugin-with-root=ok'])
          subprocess.check_call(['snap', 'connect', 'certbot:plugin', snap_name])
  
          assert plugin_name in subprocess.check_output(['certbot', 'plugins', '--prepare'],
                                                        universal_newlines=True)
          subprocess.check_call(['snap', 'connect', snap_name + ':certbot-metadata',
              'certbot:certbot-metadata'])
          subprocess.check_call(['snap', 'install', '--dangerous', dns_snap_path])
      finally:
          subprocess.call(['snap', 'remove', 'plugin_name'])
  
new_contents: #!/usr/bin/env python3
  import glob
  import os
  import re
  import subprocess
  
  import pytest
  
  
  @pytest.fixture(autouse=True, scope="module")
  def install_certbot_snap(request):
      with pytest.raises(Exception):
          subprocess.check_call(['certbot', '--version'])
      try:
          snap_folder = request.config.getoption("snap_folder")
          snap_arch = request.config.getoption("snap_arch")
          snap_path = glob.glob(os.path.join(snap_folder, 'certbot_*_{0}.snap'.format(snap_arch)))[0]
          subprocess.check_call(['snap', 'install', '--classic', '--dangerous', snap_path])
          subprocess.check_call(['certbot', '--version'])
          yield
      finally:
          subprocess.call(['snap', 'remove', 'certbot'])
  
  
  def test_dns_plugin_install(dns_snap_path):
      """
      Test that each DNS plugin Certbot snap can be installed
      and is usable with the Certbot snap.
      """
      plugin_name = re.match(r'^certbot-(dns-\w+)_.*\.snap$',
                             os.path.basename(dns_snap_path)).group(1)
      snap_name = 'certbot-{0}'.format(plugin_name)
      assert plugin_name not in subprocess.check_output(['certbot', 'plugins', '--prepare'],
                                                        universal_newlines=True)
  
      try:
          subprocess.check_call(['snap', 'install', '--dangerous', dns_snap_path])
          subprocess.check_call(['snap', 'set', 'certbot', 'trust-plugin-with-root=ok'])
          subprocess.check_call(['snap', 'connect', 'certbot:plugin', snap_name])
  
          assert plugin_name in subprocess.check_output(['certbot', 'plugins', '--prepare'],
                                                        universal_newlines=True)
          subprocess.check_call(['snap', 'connect', snap_name + ':certbot-metadata',
              'certbot:certbot-metadata'])
          subprocess.check_call(['snap', 'install', '--dangerous', dns_snap_path])
      finally:
          subprocess.call(['snap', 'remove', plugin_name])
  
subject: fix typo (#8828)