Error : the dependancies are not being downloaded on pip instal

[dinukadesilva]

I'm getting the following error when I run pip install -r requirements.txt and seems either there is an issue in dependencies or I do not have access to download them.
Appreciate your assistance.

$ pip install -r requirements.txt
Collecting http://httplib2.googlecode.com/files/httplib2-0.4.0.zip (from -r requirements.txt (line 35))
HTTP error 404 while getting http://httplib2.googlecode.com/files/httplib2-0.4.0.zip
Could not install requirement http://httplib2.googlecode.com/files/httplib2-0.4.0.zip (from -r requirements.txt (line 35)) because of error 404 Client Error: Not Found for url: http://httplib2.googlecode.com/files/httplib2-0.4.0.zip
Could not install requirement http://httplib2.googlecode.com/files/httplib2-0.4.0.zip (from -r requirements.txt (line 35)) because of HTTP error 404 Client Error: Not Found for url: http://httplib2.googlecode.com/files/httplib2-0.4.0.zip for URL http://httplib2.googlecode.com/files/httplib2-0.4.0.zip
(venv)