title: Getting ValueError as response to http request in Django framework
body: <p>When i access this url:</p>
  
  <pre><code>http://localhost:8000/ProjectOverview/proj_view/15/
  </code></pre>
  
  <p>Django tells me that the format is in complete:</p>
  
  <pre><code>Request Method:     GET
  Request URL:    http://localhost:8000/ProjectOverview/proj_view/15/
  Django Version:     1.3.1
  Exception Type:     ValueError
  Exception Value:    incomplete format
  
  Exception Location:     /home/projects/bruens_erp/ProjectOverview/views.py in proj_view, line 11
  </code></pre>
  
  <p>My urls.py:</p>
  
  <pre><code>from django.conf.urls.defaults import patterns, include, url
  
  from django.contrib import admin
  admin.autodiscover()
  
  urlpatterns = patterns('',
      url(r'^ProjectOverview/$', 'ProjectOverview.views.index'),
      url(r'^ProjectOverview/login/$', 'ProjectOverview.views.login'),
      url(r'^ProjectOverview/proj_view/(?P&lt;cust&gt;\d+)/$', 'ProjectOverview.views.proj_view'),
      url(r'^admin/doc/', include('django.contrib.admindocs.urls')),
      url(r'^admin/', include(admin.site.urls)),
  )
  </code></pre>
  
  <p>My views.py:</p>
  
  <pre><code># Create your views here.
  from django.http import HttpResponse
  
  def index(request):
      return HttpResponse("Index.... please login")
  
  def login(request):
      return HttpResponse("login page")
  
  def proj_view(request, cust):
      return HttpResponse("project overview for cust: %." % cust)
  </code></pre>
  
  <p>What is wrong with this code? </p>