Comments for Magoo

Comment on Logitech MX Revolution configuration by Morgan

Morgan — Tue, 25 Aug 2009 13:39:32 +0000

I’ll have to check that out and see. I tend to not use that button (will have to remedy). On my nano though I use it as the middle click, since it also has the switch gearing for the middle wheel. But thats a different setup, and doesn’t use btnx as I recall.

Comment on Logitech MX Revolution configuration by Samuel Huckins

Samuel Huckins — Tue, 25 Aug 2009 12:43:33 +0000

Oh these are sweet, thanks for posting the config! I had the thumb scroll wheel mapped to switch virtual desktops, but I like this much better.

Do you have any issues with the button right behind the main scroll wheel losing its config? By default it brings up help dialogs, and it seems I have to restart btnx on occasion to get it to remember a new mapping.

Comment on Decouple with kwargs by Morgan

Morgan — Fri, 24 Jul 2009 22:33:45 +0000

Thats good to know on the function line definition. It wasn’t a case that came up in this instance, only because the thread_hosts is only run once. I don’t see a need to run it more than once, but I’ll probably implement it similar to how you’ve suggested, because I can’t be sure that someone else won’t want to run it twice, in one script.

I think the most helpful suggestion was on my modification of kwargs by rolling options into it. It got me thinking that the script user needn’t have any interaction with the argument parser at all. Instead I will pass the thread_hosts function sys.argv, and let is deal with deciding what it need. The issue of changing kwargs still is present, but in this implementation its now hidden, and only crops up when the user wants to specify a kwarg that is already used in the optparse options.

End result looking something like this:
script.py

if __name__ == '__main__':
import automation

automation.thread_hosts(
automation.process_args(sys.argv),
get_commands,
options,
user="test"
)

automation.py

def thread_hosts(processed_args, get_commands, **kwargs):
import multiprocessing

hosts = []
jobs = []

(hosts, options) = processed_args
kwargs.update(options)

for host in hosts:
p = multiprocessing.Process(
target=run_commands,
args=(
host,
get_commands(host, **kwargs),
), )

jobs.append(p)
p.start()

Comment on Decouple with kwargs by Alfred Rossi

Alfred Rossi — Fri, 24 Jul 2009 22:33:39 +0000

@Heikki Toivonen

Your example doesn’t make your point. Since foo always sets option[2] = 2 it never does anything unexpected.

alfred@alfred-desktop:~$ cat ./foo.py
def foo(pair = None, options={}):
if pair:
key, value = pair
options[key] = value

print options

foo()
foo((2,2))
foo()

alfred@alfred-desktop:~$ python ./foo.py
{}
{2: 2}
{2: 2}

Comment on Decouple with kwargs by Heikki Toivonen

Heikki Toivonen — Fri, 24 Jul 2009 22:33:32 +0000

There are some subtle gotchas in the way you coded thread_hosts. First of all the default is dict, which means that if you modify options in the function, the modifications are remembered in future calls. Try this:

def foo(options={}):
options[2] = 2
print options

foo({1:1})
foo()

The normal way to handle this is to make the default value None, and if so, make the value into dict inside the function:

def foo(options=None):
if options is None:
options = {}
options[2] = 2
print options

The other thing is that you are modifying the passed in datastructure, which would probably surprise the callers. Better way would be to create a copy of kwargs to play.

Comment on Fedora 10 on the eeePC 900 by Morgan

Morgan — Tue, 09 Jun 2009 15:49:25 +0000

Very cool! I will have to use that now, perhaps on all my machines. Thanks for the comment. I think I’ll be rewriting this tutorial here again shortly to update it for fedora 11, and I’ll have to include this fact.

Comment on Fedora 10 on the eeePC 900 by Juhamatti Niemelä

Juhamatti Niemelä — Tue, 09 Jun 2009 12:17:15 +0000

You can use rpm macros to filter out unwanted locales when installing, or updating packages. Check this forum post for more information: http://fedoraforum.org/forum/showpost.php?p=1178755&postcount=16