i'm following the document to install openstack client with pip by following command:

C:>*pip install python-novaclient*

it run and end with the following error:

error: novaclient\tests\v1_1\test_security_groups.py: Permission denied

Cleaning up... Command C:\Python26\python.exe -c "import setuptools, tokenize;__file__='c:\use rs\duongdt\appdata\local\temp\pip_build_duongdt\python-novaclient\setup.p y';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record c:\users\duongdt\appdata\local\temp \pip-t6hltv-record\install-record.txt --single-version-externally-managed --comp ile failed with error code 1 in c:\users\duongdt\appdata\local\temp\pip_build_du ongdt\python-novaclient Storing debug log for failure in C:\Users\duongdt\pip\pip.log

i'm a newbee in python, plz help to solve