[Fab-user] The list formerly known as fab_hosts

[s s]

I've just updated my install to the latest version and am converting  
the script I'm working on to the new syntax/semantics.

Used to be you'd do:

config.fab_hosts( "192.168.0.1", "192.168.0.2", )

Then just write your stuff and config.fab_hosts would have each  
requested run() command applied.

Now, it appears that the decorator form is preferred if not required:

@hosts('a', 'b')
 def my_task():
     run('ls /var/www')
     sudo('mkdir /var/www/newsite')

1> I don't like decorating a command with the hosts against which it  
it is to be applied.  It early-binds the function and, in a dynamic  
installation scenario, that just doesn't make any sense.  I want to  
have generic operations with the hosts against which to apply those  
operations decided dynamically.

2> It appears that the @hosts decorator doesn't accept a list as a  
parameter as in:

myhosts( "192.168.0.1", "192.168.0.2", )

@hosts(myhosts)
 def my_task():
     run('ls /var/www')
     sudo('mkdir /var/www/newsite')

gives:

TypeError: list objects are unhashable

Number 1 is much more important.

Number 2 is just an issue of something that shouldn't be done in the  
first place not supporting an obvious syntax.

We really need to handle this "hosts" issue right now before a bunch  
of bad code gets written to cover up the fact that using a decorator  
is just the wrong way to handle any part of the "on which hosts do I  
operate"   issue.

S