Установка pip застревает при клонировании - можно ли отдельно загрузить пакет, сохранить его и установить с него?

Я пытаюсь установить и настроить Django / MongoDB setup.

Я использую эти инструкции

Эти команды работали нормально:

pip install git+https://github.com/django-nonrel/djangotoolbox
pip install git+https://github.com/django-nonrel/mongodb-engine

Но всякий раз, когда я запускаю

pip install git+https://github.com/django-nonrel/django@nonrel-1.5

застрял!

shubhendu@shubhendu-HP-Pavilion-g6-Notebook-PC:/home/foodballbear/myvenv/bin$ sudo pip install git+https://github.com/django-nonrel/django@nonrel-1.5
[sudo] password for shubhendu: 

The directory '/home/shubhendu/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/shubhendu/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting git+https://github.com/django-nonrel/django@nonrel-1.5
  Cloning https://github.com/django-nonrel/django (to nonrel-1.5) to /tmp/pip-9mkpehf8-build

Если я скачаю исходный код отдельно, могу ли я его как-нибудь установить?