restrictedPython install failure

i have downloaded RestrictedPython-5.1.tar.gz and uncompressed it on my device(operation system: REDHAT, Python version: 2.7.6). i try to install it and mete some issues. I really want to know the order in which the installation commands are executed and whether only executing “pip install restrictedPython” can install the restrictedPython?
My operation steep is below:

eswxxxa@seroiuts01940:~/Downloads/RestrictedPython-5.1 > python setup.py build
/app/vbuild/RHEL7-x86_64/python/2.7.6/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: ‘project_urls’
warnings.warn(msg)
/app/vbuild/RHEL7-x86_64/python/2.7.6/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: ‘python_requires’
warnings.warn(msg)
/app/vbuild/RHEL7-x86_64/python/2.7.6/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: ‘long_description_content_type’
warnings.warn(msg)
running build
running build_py
creating build
creating build/lib
creating build/lib/RestrictedPython
copying src/RestrictedPython/Eval.py → build/lib/RestrictedPython
copying src/RestrictedPython/Guards.py → build/lib/RestrictedPython
copying src/RestrictedPython/Limits.py → build/lib/RestrictedPython
copying src/RestrictedPython/PrintCollector.py → build/lib/RestrictedPython
copying src/RestrictedPython/Utilities.py → build/lib/RestrictedPython
copying src/RestrictedPython/init.py → build/lib/RestrictedPython
copying src/RestrictedPython/_compat.py → build/lib/RestrictedPython
copying src/RestrictedPython/compile.py → build/lib/RestrictedPython
copying src/RestrictedPython/transformer.py → build/lib/RestrictedPython
running egg_info
writing requirements to src/RestrictedPython.egg-info/requires.txt
writing src/RestrictedPython.egg-info/PKG-INFO
writing top-level names to src/RestrictedPython.egg-info/top_level.txt
writing dependency_links to src/RestrictedPython.egg-info/dependency_links.txt
reading manifest file ‘src/RestrictedPython.egg-info/SOURCES.txt’
writing manifest file ‘src/RestrictedPython.egg-info/SOURCES.txt’
eswxxxa@seroiuts01940:~/Downloads/RestrictedPython-5.1 >
eswxxxa@seroiuts01940:~/Downloads/RestrictedPython-5.1 > python setup.py install
/app/vbuild/RHEL7-x86_64/python/2.7.6/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: ‘project_urls’
warnings.warn(msg)
/app/vbuild/RHEL7-x86_64/python/2.7.6/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: ‘python_requires’
warnings.warn(msg)
/app/vbuild/RHEL7-x86_64/python/2.7.6/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: ‘long_description_content_type’
warnings.warn(msg)
running install
error: can’t create or remove files in install directory

The following error occurred while trying to add or remove files in the
installation directory:

[Errno 30] Read-only file system: '/app/vbuild/RHEL7-x86_64/python/2.7.6/lib/python2.7/site-packages/test-easy-install-30794.write-test'

The installation directory you specified (via --install-dir, --prefix, or
the distutils default setting) was:

/app/vbuild/RHEL7-x86_64/python/2.7.6/lib/python2.7/site-packages/

Perhaps your account does not have write access to this directory? If the
installation directory is a system-owned directory, you may need to sign in
as the administrator or “root” account. If you do not have administrative
access to this machine, you may wish to choose a different installation
directory, preferably one that is listed in your PYTHONPATH environment
variable.

For information on other options, you may wish to consult the
documentation at:

https://pythonhosted.org/setuptools/easy_install.html

Please make the appropriate changes for your system and try again.

eswxxxa@seroiuts01940:~/Downloads/RestrictedPython-5.1 >

I would appreciate it if you could reply to me quickly!!!
Thanks for your support!!!