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-modules-sources --install-option=--prefix=/somedirectory/tmp

and the requirement file looks like this,


django==1.6.8
django-evolution==0.7.4
django-pipeline==1.3.25
django-haystack==2.3.1
argparse==1.3.0
markdown==2.4.1
mimeparse==0.1.3
recaptcha-client==1.0.6
SOAPpy==0.12.5
PyXB
python-dateutil==1.5
python-memcached==1.53
paramiko==1.15.1
Pygments==1.6
pytz==2014.7
feedparser==5.1.3
ecdsa==0.11
jsmin==2.0.6
docutils==0.12
fpconst==0.7.2
futures==2.2.0
pillowfight==0.2
Whoosh==2.6.0
wstools==0.3
twisted==13.2.0
backports.ssl-match-hostname==3.5.0.1
tornado==3.2
zope.interface==4.0.5
pycrypto==2.6.1



when executing  Running setup.py install for twisted
    gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -I/usr/include/python2.6 -c conftest.c -o conftest.o
    building 'twisted.runner.portmap' extension
    gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -I/usr/include/python2.6 -c twisted/runner/portmap.c -o build/temp.linux-x86_64-2.6/twisted/runner/portmap.o
    gcc -pthread -shared build/temp.linux-x86_64-2.6/twisted/runner/portmap.o -L/usr/lib64 -lpython2.6 -o build/lib.linux-x86_64-2.6/twisted/runner/portmap.so


It is hanging with the above line and after 15 to 20 mins, If I issue ctrl+c, it is not showing any error, and in /root/.pip/pip.log, I could see only the following at end,

 building 'twisted.runner.portmap' extension

    gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -I/usr/include/python2.6 -c twisted/runner/portmap.c -o build/temp.linux-x86_64-2.6/twisted/runner/portmap.o

    gcc -pthread -shared build/temp.linux-x86_64-2.6/twisted/runner/portmap.o -L/usr/lib64 -lpython2.6 -o build/lib.linux-x86_64-2.6/twisted/runner/portmap.so

Operation cancelled by user

Exception information:
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/pip/basecommand.py", line 104, in main
    status = self.run(options, args)
  File "/usr/lib/python2.6/site-packages/pip/commands/install.py", line 250, in run
    requirement_set.install(install_options, global_options)
  File "/usr/lib/python2.6/site-packages/pip/req.py", line 1133, in install
    requirement.install(install_options, global_options)
  File "/usr/lib/python2.6/site-packages/pip/req.py", line 577, in install
    cwd=self.source_dir, filter_stdout=self._filter_install, show_stdout=False)
  File "/usr/lib/python2.6/site-packages/pip/__init__.py", line 230, in call_subprocess
    line = console_to_str(stdout.readline())
KeyboardInterrupt


pip --version
pip 1.1 from /usr/lib/python2.6/site-packages (python 2.6)
python --version
Python 2.6.6


Would anyone please tell me where it is going wrong and what package is missing ?

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