old_contents: import json
  import os.path
  import ipykernel
  import re
  from notebook.notebookapp import list_running_servers
  import requests
  from requests.compat import urljoin
  
  
  def get_notebook_name(): #pylint:disable=inconsistent-return-statements
      """
      Return the full path of the jupyter notebook.
      """
      kernel_id = re.search('kernel-(.*).json',
                            ipykernel.connect.get_connection_file()).group(1)
      servers = list_running_servers()
      for ss in servers:
          response = requests.get(urljoin(ss['url'], 'api/sessions'),
                                  params={'token': ss.get('token', '')})
          for nn in json.loads(response.text):
              if nn['kernel']['id'] == kernel_id:
                  full_path = nn['notebook']['path']
                  return os.path.basename(full_path)
  
  
  def is_in_notebook():
      try:
          ipykernel.get_connection_info()
      # Temporary fix for #84
      # TODO: remove blanket Exception catching after fixing #84
      except Exception:
          return False
      return True
  
new_contents: import json
  import os.path
  import ipykernel
  import re
  from notebook.notebookapp import list_running_servers
  import requests
  from requests.compat import urljoin
  
  
  def get_notebook_name(): #pylint:disable=inconsistent-return-statements
      """
      Return the full path of the jupyter notebook.
      """
      kernel_id = re.search('kernel-(.*).json',
                            ipykernel.connect.get_connection_file()).group(1)
      servers = list_running_servers()
      for ss in servers:
          response = requests.get(urljoin(ss['url'], 'api/sessions'),
                                  params={'token': ss.get('token', '')})
          for nn in json.loads(response.text):
              if nn['kernel']['id'] == kernel_id:
                  full_path = nn['notebook']['path']
                  return os.path.basename(full_path)
  
  
  def is_in_notebook():
      """
      To check is in notenook or not
      """
      try:
          ipykernel.get_connection_info()
      # Temporary fix for #84
      # TODO: remove blanket Exception catching after fixing #84
      except Exception:
          return False
      return True
  
subject: Add doc to notebook (#401)