the error log when installing tweets2pdf

pip.log

$ pip install -vv tweets2pdf/
Unpacking ./tweets2pdf
  Running setup.py egg_info for package from file:///home/john/code/tweets2pdf
    running egg_info
    creating pip-egg-info/tweets2pdf.egg-info
    writing pip-egg-info/tweets2pdf.egg-info/PKG-INFO
    writing top-level names to pip-egg-info/tweets2pdf.egg-info/top_level.txt
    writing dependency_links to pip-egg-info/tweets2pdf.egg-info/dependency_links.txt
    writing manifest file 'pip-egg-info/tweets2pdf.egg-info/SOURCES.txt'
    warning: manifest_maker: standard file '-c' not found
    reading manifest file 'pip-egg-info/tweets2pdf.egg-info/SOURCES.txt'
    reading manifest template 'MANIFEST.in'
    warning: no files found matching 'COPYING'
    warning: no files found matching 'ChangeLog'
    warning: no files found matching 'AUTHORS'
    warning: no files found matching 'install'
    warning: no files found matching 'install.ubuntu'
    warning: no files found matching '*.cmd'
    warning: no files found matching '*' under directory 'script'
    warning: no files found matching '*.js' under directory 'data'
    warning: no files found matching '*.html' under directory 'data'
    warning: no files found matching '*.htm' under directory 'data'
    warning: no files found matching '*.png' under directory 'data'
    warning: no files found matching '*.gif' under directory 'data'
    warning: no files found matching '*.jpg' under directory 'data'
    warning: no files found matching '*.py' under directory 'data'
    warning: no files found matching '*.txt' under directory 'data'
    warning: no files found matching '*.xml' under directory 'data'
    warning: no files found matching '*.in' under directory 'data'
    warning: no files found matching '*.conf' under directory 'data'
    warning: no files found matching '*.ui' under directory 'data'
    warning: no files found matching '*.po' under directory 'po'
    warning: no files found matching '*.in' under directory 'po'
    writing manifest file 'pip-egg-info/tweets2pdf.egg-info/SOURCES.txt'
Installing collected packages: tweets2pdf
  Running setup.py install for tweets2pdf
    Running command /home/john/code/virtualenvs/tweets2pdf/bin/python -c "import setuptools;__file__='/tmp/pip-rP8edH-build/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-RAbB8y-record/install-record.txt --install-headers /home/john/code/virtualenvs/tweets2pdf/include/site/python2.6
    running install
    running build
    running build_py
    running build_scripts
    running install_lib
    creating /usr/lib/python2.6/site-packages
    error: could not create '/usr/lib/python2.6/site-packages': Permission denied
    Complete output from command /home/john/code/virtualenvs/tweets2pdf/bin/python -c "import setuptools;__file__='/tmp/pip-rP8edH-build/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-RAbB8y-record/install-record.txt --install-headers /home/john/code/virtualenvs/tweets2pdf/include/site/python2.6:
    running install

running build

running build_py

running build_scripts

running install_lib

creating /usr/lib/python2.6/site-packages

error: could not create '/usr/lib/python2.6/site-packages': Permission denied