# wget "https://bitbucket.org/pypa/setuptools/get/default.tar.gz#egg=setuptools-dev" --no-check-certificate

# tar -xzvf default.tar.gz

# cd pypa-setuptools-eb92fc5071bf //depends on the name of your unpacking directory

# python setup.py install

After the installation is complete, just execute your installer command (python setup.py install).