python - Require help in Django 'local variable 'form' referenced before assignment' -

i having problem in django. have created form in app can take details of client. want create form can allow me edit form. having problems when go /index/edit_client/1, error.

local variable 'form' referenced before assignment 

i not know reason why have got error, have looked at, not matters unless of course there way how create edit form edit clients form. here output can helpful too.

# urls.py     urlpatterns = patterns('',     (r'^index/$', login_required(direct_to_template), { 'template': 'index.html' }),     (r'^index/clients/$', client_info),     (r'^index/clients_details/(?p<id>\d+)/$', clients_details),     (r'^index/edit_client/(?p<id>\d+)/$', edit_client), )  # views.py @login_required  def edit_client(request, id=1):     clients_list = client.objects.filter(pk=id)       if request.method == 'post':         form = clientform(request.post or none)         if form.is_valid():             form.save()             return httpresponseredirect('/index/clients/')         else: form = clientform()     return render_to_response('edit_client.html', {'form': form},  context_instance=requestcontext(request))  #edit_client.html {% extends "base.html" %}  {% block content %} <font face="verdana,news gothic,arial,heltevica,serif">     <h3>edit client</h3> </font> <form method= "post" action="">     <font face="verdana,news gothic,arial,heltevica,serif">     <div id="form">         <table>             {{form.as_table}}         </table>         <div align="center" style=" margin-right:190px">             <input type="submit" value="submit" style="background-color:#e8e8e8; color:#181818 "/>         </div>     </div> </form> {% endblock %} 

this run:

return render_to_response('edit_client.html', {'form': form} 

but if request.method not post, nothing assigned form.

fixed code:

@login_required  def edit_client(request, id=1):     clients_list = client.objects.filter(pk=id)       form = clientform()     if request.method == 'post':        form = clientform(request.post or none)        if form.is_valid():            form.save()            return httpresponseredirect('/index/clients/')     return render_to_response('edit_client.html', {'form': form},  context_instance=requestcontext(request))