Horizon from Github Source does not work because quantum is not getting installed.

Hi,
I am using Diablo branch and openstack-dashboard/tools/pip-requires has

git+https://github.com/openstack/quantum.git#egg=quantum

when i run

 $ python tools/install_venv.py
 Everything works fine for me exuding quantum installation.

Obtaining quantum from git+https://github.com/openstack/quantum.git#egg=quantum (from -r /home/keystone/horizon/openstack-dashboard/tools/pip-requires (line 22))
  Updating ./.dashboard-venv/src/quantum clone
  Running setup.py egg_info for package quantum
    Checking for virtual-env and easy_install
    done.
    Command 'egg' not found
No files/directores in /home/keystone/horizon/openstack-dashboard/.dashboard-venv/src/quantum (from dependency_links.txt)
Storing complete log in /home/keystone/.pip/pip.log
Command "/home/keystone/horizon/openstack-dashboard/tools/with_venv.sh pip install -E /home/keystone/horizon/openstack-dashboard/.dashboard-venv -r /home/keystone/horizon/openstack-dashboard/tools/pip-requires" failed.
None

Am i doing something wrong? Is it related to Virtual environment issue?