Django template return POST array

Question

I have an issue about returning data array in POST. I do not find a way to do it...

Here the code, I remove not necessary part of the code :

• View

def viewPro(request):
    if request.method == 'POST':
        if bool(request.FILES.get('file', False)) == True :
            ... 
            if analyseType == 'r':
                ...
            elif analyseType == 'm':
                fc, dRect, ctrlRect = ExtractData(file, analyseType)
                context = {
                     ...
                    'f' = True,
                    'fc' = fc, 
                    'dRect': dRect,
                    'ctrlRect': ctrlRect,
                }
                return render(request, 'ctd.html', context) 
        else:
            ...
            dRect = request.POST.get("dRect")
            ctrlRect = request.POST.get("ctrlRect")
            fc = request.POST.get("fc")
            UpdateData(fc, dRect, ctrlRect)
            img_out_path = executectd(..., fc, dRect, ctrlRect)
            context = {
                'filename': img_out_path,
            }
            return render(request, 'result.html', context) 
    else:
        ... (different forms)
        context = {
           'f' = False
           ...
        }
        return render(request, 'ctd.html', context)

• Template

{% if factors %}
  <br>
  <div class="card">
      <div class="card-body p-5">
          <div class="text-center mb-5">
              <h2 class="h4 fw-bolder popup">
                  cf
              </h2>
              <h6 class="popup">
                  <img src="{% static 'assets/help.jfif' %}"
                       onclick="showContextualHelp('cf')">
                  <span class="popuptext" id="cf">
          Fill here the cf
      </span>
              </h6>

              <br>
              <div class="container">
                  <div class="row gx-5 justify-content-center">
                      <table>
                          <thead>
                          <tr>
                          </tr>
                          </thead>
                          <tbody>
                          {% for  key, value_list in fc.items %}
                              <tr>
                                  <th>{{ key }}</th>
                                  {% for value in value_list %}

                                      <td><input class="form-control" value="{{ value }}" {{ value }}></td>

                                  {% endfor %}
                              </tr>
                          {% endfor %}
                          </tbody>
                      </table>
                  </div>
              </div>
          </div>
      </div>
  </div>
<br>
  <div id="template-multi2" style="display:none" >
      <div class="card">
          <div class="card-body p-5">
              <div class="text-center mb-5">
                  <h2 class="h4 fw-bolder popup">
                      dRect 
                  </h2>
                  <h6 class="popup">
                      <img src="{% static 'assets/help.jfif' %}" onclick="showContextualHelp('d_rect')">
                      <span class="popuptext" id="cf">
          TODO
      </span>
                  </h6>
                  <br>
                  <div class="container">
                      <div class="row gx-5 justify-content-center">
                          <table>
                              <thead>
                              <tr>
                                      <th></th>
                                      <th>TODO </th>
                                      <th>TODO </th>
                              </tr>
                              </thead>
                              <tbody>
                              <tr>
                                  <th>TODO</th>
                                  <td><input class="form-control" value="{{ dRect.0 }}" {{ dRect.0 }}></td>
                                  <td><input class="form-control" value="{{ dRect.1 }}" {{ dRect.1 }}></td>
                              </tr>
                              <tr>
                                  <th>TODO</th>
                                  <td><input class="form-control" value="{{ dRect.2 }}" {{ dRect.2 }}></td>
                                  <td><input class="form-control" value="{{ dRect.3 }}" {{ dRect.3 }}></td>
                              </tr>
                              </tbody>
                          </table>
                      </div>
                  </div>
              </div>
          </div>
      </div>
      <br>
      <div class="card">
          <div class="card-body p-5">
              <div class="text-center mb-5">
                  <h2 class="h4 fw-bolder popup">
                      Controle Rectangle
                  </h2>
                  <h6 class="popup">
                      <img src="{% static 'assets/help.jfif' %}" onclick="showContextualHelp('ctrl_rect')">
                      <span class="popuptext" id="ctrl_rect">
          Fill here the location 
      </span>
                  </h6>
                  <br>
                  <div class="container">
                      <div class="row gx-5 justify-content-center">
                          <table>
                              <thead>
                              <tr>
                                      <th></th>
                                      <th> X coordinate</th>
                                      <th> Y coodinate</th>
                              </tr>
                              </thead>
                              <tbody>
                              <tr>
                                  <th>Min</th>
                                  <td><input class="form-control" value="{{ ctrlRect.0 }}" {{ ctrlRect.0 }}></td>
                                  <td><input class="form-control" value="{{ ctrlRect.1 }}" {{ ctrlRect.1 }}></td>
                              </tr>
                              <tr>
                                  <th>Max</th>
                                  <td><input class="form-control" value="{{ ctrlRect.2 }}" {{ ctrlRect.2 }}></td>
                                  <td><input class="form-control" value="{{ ctrlRect.3 }}" {{ ctrlRect.3 }}></td>
                              </tr>
                              </tbody>
                          </table>
                      </div>
                  </div>
              </div>
          </div>
      </div>
      <br>
  </div>
{% endif %}

In my template, I first give some information and files. Then, the same template is reload with last information and new ones as fc, dRect, ctrlRect read in a file.

These values can be modify by the user. And my problem is here. These informations are in different arrays. It is not a problem to read values and display it. But if the user modify one of these values, how can I access it in the view with POST ? These values are not in a Form, because I do not found a form structure for it. Have you any idea how I can do it ?

Thanks ;)