Issue with passing parameters in urls

Hey All, 

I have been watching your youtube tutorials and have been stuck on an issue for a while now. Can you help me out pls - 

I am trying to pass a parameter via a button in an HTML file and using that in the next link to access a specific set of entries from the database - 

HTML File code - 

{% for thread in object %}
  <tr>
  <td><a href="{% url 'message' thread.id %}" class="btn btn-primary" role="button">{{ thread.name }}</a></td>
  <td>Something</td>
  </tr>
{% endfor %}

URLs files code - 

path('message/<int:threadid>/', views.message, name='message'),

Views files code 

def message(request, threadid):
  if request.method == 'POST':
    print(request.POST.get('message'))
    m = messages(message=request.POST.get('message'), thread_id='00', likes='00', Message_flags='00')
    m.save();
    if (request.method == 'POST') and ("like" in request.POST):
      print("hi")
    data = messages.objects.all()
    context = {
      'object': data
    }
    return render(request, 'mysite/message.html', context)
  else:
    data = messages.objects.all()
    context = {
      'object': data
    }
    return render(request, 'mysite/message.html', context)

But I get this error, idk how to resolve this one - 

Pls let me know If you are able to figure out the problem. 

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