AttributeError: 'NoneType' object has no attribute 'private_bytes'

[bhavya1213]

I am trying to run this send.py from given example files,

  import asyncio
  import xml.etree.ElementTree as ET
  
  from configparser import ConfigParser
  
  import pytak
  
  
  class MySerializer(pytak.QueueWorker):
      """
      Defines how you process or generate your Cursor on Target Events.
      From there it adds the CoT Events to a queue for TX to a COT_URL.
      """
  
      async def handle_data(self, data):
          """Handle pre-CoT data, serialize to CoT Event, then puts on queue."""
          event = data
          await self.put_queue(event)
  
      async def run(self, number_of_iterations=-1):
          """Run the loop for processing or generating pre-CoT data."""
          while 1:
              data = tak_pong()
              await self.handle_data(data)
              await asyncio.sleep(20)
  
  
  def tak_pong():
      """Generate a simple takPong CoT Event."""
      root = ET.Element("event")
      root.set("version", "2.0")
      root.set("type", "t-x-d-d")
      root.set("uid", "takPong")
      root.set("how", "m-g")
      root.set("time", pytak.cot_time())
      root.set("start", pytak.cot_time())
      root.set("stale", pytak.cot_time(3600))
      return ET.tostring(root)
  
  
  async def main():
      """Main definition of your program, sets config params and
      adds your serializer to the asyncio task list.
      """
      config = ConfigParser()
      config["mycottool"] = {"COT_URL": "tls://SERVER_ADDRESS:8089", "PYTAK_TLS_CLIENT_CERT": "CERT_PATH.p12", "PYTAK_TLS_CLIENT_PASSWORD": "atakatak"}
      config = config["mycottool"]
  
      
      # Initializes worker queues and tasks.s
      clitool = pytak.CLITool(config)
      await clitool.setup()
  
      # Add your serializer to the asyncio task list.
      clitool.add_tasks(set([MySerializer(clitool.tx_queue, config)]))
  
      # Start all tasks.
      await clitool.run()
  
  
  if __name__ == "__main__":
      asyncio.run(main())

but when i run this i get this error:

`/Users/admin/anaconda3/lib/python3.11/site-packages/takproto/__init__.py:43: UserWarning: COMPAT Python 3.6. Ignoring Exception: cannot import name 'builder' from 'google.protobuf.internal' (/Users/admin/anaconda3/lib/python3.11/site-packages/google/protobuf/internal/__init__.py)
  warnings.warn(f"COMPAT Python 3.6. Ignoring Exception: {str(exc)}")
atakatak
Traceback (most recent call last):
  File "/Users/admin/Downloads/pytak-main/examples/send.py", line 64, in <module>
    asyncio.run(main())
  File "/Users/admin/anaconda3/lib/python3.11/asyncio/runners.py", line 190, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "/Users/admin/anaconda3/lib/python3.11/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/admin/anaconda3/lib/python3.11/asyncio/base_events.py", line 653, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "/Users/admin/Downloads/pytak-main/examples/send.py", line 54, in main
    await clitool.setup()
  File "/Users/admin/anaconda3/lib/python3.11/site-packages/pytak/classes.py", line 363, in setup
    reader, writer = await pytak.protocol_factory(self.config)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/admin/anaconda3/lib/python3.11/site-packages/pytak/client_functions.py", line 100, in protocol_factory
    reader, writer = await create_tls_client(config, cot_url)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/admin/anaconda3/lib/python3.11/site-packages/pytak/client_functions.py", line 278, in create_tls_client
    ssl_ctx = get_ssl_ctx(tls_config)
              ^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/admin/anaconda3/lib/python3.11/site-packages/pytak/client_functions.py", line 342, in get_ssl_ctx
    cert_paths = convert_cert(client_cert, client_password)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/admin/anaconda3/lib/python3.11/site-packages/pytak/crypto_functions.py", line 88, in convert_cert
    pk_pem = private_key.private_bytes(
             ^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'private_bytes'`

how do i solve this?

[inteq]

From the traceback and your initial setup of the clitool object, you need to specify your SERVER ADDRESS:
config["mycottool"] = {"COT_URL": "tls://SERVER_ADDRESS:8089", "PYTAK_TLS_CLIENT_CERT": "CERT_PATH.p12", "PYTAK_TLS_CLIENT_PASSWORD": "atakatak"}
right now it is not set to anything that would resolve to an ip.