pyfab provides a simpler fabric interface for python

pyfab.py

import fabfile as fab

class Pyfab:
    def __init__(self, role, user):
        self.role = role
        self.user = user

    def fab_exec(self, command, *args, **kwargs):
        '''
        this runs fabric commands defined in the fabfile.  By default it
        will execute commands based on the roles passed from the fabric config
        stored in a dictionary called 'roledefs'. 
        By default it will execute commands as the user passed during init.
        
        You may override the user or define a single host e.g.:
        fab_exec("<fab file cmd>", args, kwargs, host='xenon.rdc.lctl.gov', user='brma')
        '''
        user = self.user
        host = None
        fabkwargs = {}
        hosts = fab.env["roledefs"][self.role]
        for key in kwargs:
            if key == 'user':
                user = kwargs[key]
            elif key == 'host':
                host = [ kwargs[key] ]
            else:
                fabkwargs[key] = kwargs[key]
        fab.env.user = user
        if host: hosts = host
        for host_str in hosts:
            fab.env.host_string = host_str
            getattr(fab, command)(*args, **fabkwargs)

leaving this here for historical reasons, but fabric included support for this right around the same time I wrote it