On 4/19/11 3:48 AM, Lamont Nelson wrote:
> 1. Are you sure you want to use python because threading is not
good due
to the Global Lock (GIL)? Is this really an issue for multi-threaded
web services as seems to be indicated by the articles from a Google
search? If not, how do you avoid this issue in a multi-threaded process
to take advantage of all the CPU cores available?
To take advantage of the cores on your server you'll want to consider
a multi-process design instead of multi-threading. You can achieve
this with something like http://projects.unbit.it/uwsgi/, which will
allow you to manage the processes. I've used this behind apache
successfully.
2. Are there good web services frameworks available for building a REST
based service? I admit I have looked at web2py, Django, pyramid/pylons,
and a few others. SOAP seems to be pretty well supported but I'm not
finding the same for quick development of REST based services for
exchanging JSON or XML formatted data. This is probably just my n00b
status, but what tools are best for building a simple REST data exchange
API?
I've personally used Pyramid to implement REST web services with
multiple data transport formats (json, xml) for the same endpoints
with minimal fuss. It's basically as simple as returning an object
from your view and defining a renderer that knows how to translate
this object to the desired format. Look at
http://docs.pylonsproject.org/projects/pyramid/1.0/narr/renderers.html#views-which-use-a-renderer
and
http://docs.pylonsproject.org/projects/pyramid/1.0/narr/viewconfig.html#view-config-chapter
for more information.
Lamont
Thanks to everyone who has replied. I have a better understanding of
the limitations around the GIL as well as the relatively architectures
for avoiding the issue. Now to find the right framework for a simple
web service. So far I've heard pyramid the most, but others we are
looking into include rest.ish.io, web2py, and flask. Anyone with
experience across these as to what is best for someone starting from
scratch now?
Chris
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