Pip

pip is a pretty popular package installer/manager for Python.

I've just had to use it to replace bzr and paramiko (python-paramiko) on Cygwin with different versions in order to work around grievous SSH failures.

pip has its own dirty install process for OSes that don't supply a package (such as Cygwin).

Install pip

The current install instructions for pip are, for the foreseeable, at this location.

Replacing bzr, python-paramiko, and python-crypto on Cygwin

apt-cyg remove python-paramiko python-crypto bzr
# Or use setup*.exe to remove the packages
# The following might require sudo on non-Cygwin platforms
pip install bzr
pip install paramiko # installs crypto as a dependency