pip install twisted hangs

I have my standalone box without internet connection and having pythong packages in a directory to install, I used the following pip command to install the python package with the "requirement" file /usr/bin/pip install --no-download -r ./installer/requirements -b ./installer/SOURCES/python-mo

Running setup.py install for twisted hangs

I have standalone box with python packages downloaded and no internet connection. And when I tried to execute /usr/bin/pip install --no-download -r ./installer/requirements -b ./installer/SOURCES/python-modules-sources --install-option=--prefix=/somepath/tmp It is hanging when "Running setup.