title: pip wheel created without any python sub-packages
body: <p><strong>operating system and version</strong></p>
  
  <p><em>Ubuntu 18.04 VM hosted by WIN10</em></p>
  
  <p><strong>Python version</strong></p>
  
  <p><em>Python 2.7.15rc1</em></p>
  
  <p><strong>version of pip</strong> </p>
  
  <p><em>pip 18.0</em></p>
  
  <p><strong>description</strong> </p>
  
  <p>*I'm trying to package Django project and wheel created but without any python sub-packages</p>
  
  <p>what i'm missing please ??
  *</p>
  
  <h1>Folder structure</h1>
  
  <p>zoharngo@zoharngo-VirtualBox:~/todobackend$ tree -L 4</p>
  
  <p>.</p>
  
  <p>├── manage.py</p>
  
  <p>├── setup.py</p>
  
  <pre><code>└── todobackend
  
      ├── __init__.py
      ├── todo
      │   ├── admin.py
      │   ├── apps.py
      │   ├── __init__.py
      │   ├── migrations
      │   │   ├── 0001_initial.py
      │   │   └── __init__.py
      │   ├── models.py
      │   ├── serializers.py
      │   ├── tests.py
      │   ├── urls.py
      │   └── views.py
      └── todobackend
          ├── __init__.py
          ├── settings
          │   ├── base.py
          │   ├── __init__.py
          │   ├── release.py
          │   └── test.py
          ├── urls.py
          └── wsgi.py
  </code></pre>
  
  <h2>setup.py</h2>
  
  <pre><code>from setuptools import setup, find_packages
  setup(
  name                 = "todobackend",
  version              = "0.1.0",
  description          = "TodoBackend Djnago REST service",
  package              = find_packages(),
  include_package_data = True,
  scripts              = ["manage.py"],
  install_requires     = ["Django&gt;=1.9,&lt;2.0",
                          "django-cors-headers&gt;=2.4.0",
                          "djangorestframework&gt;=3.8.2",
                          "MySQL-python&gt;=1.2.5",
                          "uwsgi&gt;=2.0"
                          ],
   extras_require     =   {
                              "test": [
                                  "colorama&gt;=0.3.9",
                                  "coverage&gt;=4.5.1",
                                  "django-nose&gt;=1.4.5",
                                  "nose&gt;=1.3.7",
                                  "pinocchio&gt;=0.4.2"
                              ]
                          }
  </code></pre>
  
  <p>)</p>