Django Channels

I followed the tutorial on django channel site which has link: https://channels.readthedocs.io/en/latest/tutorial/part_2.html

 import channels.layers
 from asgiref.sync import async_to_sync
 print("running")
 channel_layer = channels.layers.get_channel_layer()
 async_to_sync(channel_layer.send)('test_channel', {'type': 'hello'})  <------ this is the cause of error but why i am not able to figure it out

Then i got Segmented fault error,

So the stack trace for the error was :

Fatal Python error: Segmentation fault

Current thread 0x00007f9657fff700 (most recent call first):
  File "/home/abohra/Documents/Dev/ex/env/lib/python3.7/weakref.py", line 364 in remove

Thread 0x00007f965c99f700 (most recent call first):
  File "/usr/lib/python3.7/selectors.py", line 484 in close
  File "/usr/lib/python3.7/asyncio/selector_events.py", line 89 in close
  File "/usr/lib/python3.7/asyncio/unix_events.py", line 55 in close
  File "/home/abohra/Documents/Dev/ex/env/lib/python3.7/site-packages/channels_redis/core.py", line 34 in _wrapper
  File "/home/abohra/Documents/Dev/ex/env/lib/python3.7/site-packages/asgiref/sync.py", line 124 in _run_event_loop
  File "/usr/lib/python3.7/concurrent/futures/thread.py", line 57 in run
  File "/usr/lib/python3.7/concurrent/futures/thread.py", line 80 in _worker
  File "/usr/lib/python3.7/threading.py", line 870 in run
  File "/usr/lib/python3.7/threading.py", line 926 in _bootstrap_inner
  File "/usr/lib/python3.7/threading.py", line 890 in _bootstrap

Thread 0x00007f96605b6740 (most recent call first):
  File "/home/abohra/Documents/Dev/ex/env/lib/python3.7/site-packages/asgiref/current_thread_executor.py", line 65 in run_until_future
  File "/home/abohra/Documents/Dev/ex/env/lib/python3.7/site-packages/asgiref/sync.py", line 91 in __call__
  File "/home/abohra/Documents/Dev/ex/experimenting/tester.py", line 7 in <module>
  File "<frozen importlib._bootstrap>", line 219 in _call_with_frames_removed
  File "<frozen importlib._bootstrap_external>", line 728 in exec_module
  File "<frozen importlib._bootstrap>", line 677 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 967 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 983 in _find_and_load
  File "<console>", line 1 in <module>
  File "/usr/lib/python3.7/code.py", line 90 in runcode
  File "/usr/lib/python3.7/code.py", line 74 in runsource
  File "/usr/lib/python3.7/code.py", line 258 in push
  File "/usr/lib/python3.7/code.py", line 232 in interact
  File "/usr/lib/python3.7/code.py", line 301 in interact
  File "/home/abohra/Documents/Dev/ex/env/lib/python3.7/site-packages/django/core/management/commands/shell.py", line 81 in python
  File "/home/abohra/Documents/Dev/ex/env/lib/python3.7/site-packages/django/core/management/commands/shell.py", line 99 in handle
  File "/home/abohra/Documents/Dev/ex/env/lib/python3.7/site-packages/django/core/management/base.py", line 364 in execute
  File "/home/abohra/Documents/Dev/ex/env/lib/python3.7/site-packages/django/core/management/base.py", line 323 in run_from_argv
  File "/home/abohra/Documents/Dev/ex/env/lib/python3.7/site-packages/django/core/management/__init__.py", line 375 in execute
  File "/home/abohra/Documents/Dev/ex/env/lib/python3.7/site-packages/django/core/management/__init__.py", line 381 in execute_from_command_line
  File "./manage.py", line 17 in main
  File "./manage.py", line 21 in <module>

Any Help is Appreciated.

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