http://code.activestate.com/recipes/tags/wsgi-python/2012-07-04T21:03:32-07:00ActiveState Code Recipes2012-07-04T21:03:32-07:00pavelhttp://code.activestate.com/recipes/users/4171837/http://code.activestate.com/recipes/578194-distributed-lock-manager-for-python/

<p style="color: grey"> Python recipe 578194 by <a href="/recipes/users/4171837/">pavel</a> (<a href="/recipes/tags/distributed/">distributed</a>, <a href="/recipes/tags/lock/">lock</a>, <a href="/recipes/tags/locking/">locking</a>, <a href="/recipes/tags/locks/">locks</a>, <a href="/recipes/tags/manager/">manager</a>, <a href="/recipes/tags/socket/">socket</a>, <a href="/recipes/tags/thread/">thread</a>, <a href="/recipes/tags/threading/">threading</a>, <a href="/recipes/tags/wsgi/">wsgi</a>). Revision 2. </p> <p>Distributed lock manager provides mutex(es) over network. It is used to synchronize processes running on different machines, e.g. WSGI processes in case of web applications. Lock object is compatible with threading.Lock and can be used as a context manager ("with statement"). It can be easily modified to use UNIX sockets instead of TCP/IP. Communication protocol is text based.</p> <p>First start server process:</p> <pre class="prettyprint"><code>$ chmod +x dlm.py $ ./dlm.py </code></pre> <p>Usage:</p> <pre class="prettyprint"><code>from dlm import LockClient client = LockClient('localhost', 27272, 'client_name') lock = client.mkLock('lock_name') lock.acquire() # critical section here... lock.release() # using context manager with lock: # critical section here... </code></pre>

2011-05-15T19:38:13-07:00Alexandre Zanihttp://code.activestate.com/recipes/users/4177180/http://code.activestate.com/recipes/577696-function-pipelines/

<p style="color: grey"> Python recipe 577696 by <a href="/recipes/users/4177180/">Alexandre Zani</a> (<a href="/recipes/tags/events/">events</a>, <a href="/recipes/tags/pipelining/">pipelining</a>, <a href="/recipes/tags/wsgi/">wsgi</a>). </p> <p>Pipelines can be used to chain a series of functions to process a piece of data. For instance you can build a pipeline to process web requests easily including some middleware for instance.</p>

2011-05-22T20:39:05-07:00Rob Lhttp://code.activestate.com/recipes/users/4178061/http://code.activestate.com/recipes/577714-function-pipelines/

<p style="color: grey"> Python recipe 577714 by <a href="/recipes/users/4178061/">Rob L</a> (<a href="/recipes/tags/events/">events</a>, <a href="/recipes/tags/pipelining/">pipelining</a>, <a href="/recipes/tags/wsgi/">wsgi</a>). </p> <p>Alexandre Zani's recipe on function pipelines was useful. I wanted to change it to suit my needs.</p> <p>Mostly I just wanted to add arbitrary functions and make the pipe line more list like in behavior.</p> <p>(edit: typos)</p>

2009-12-28T09:36:18-08:00Sven Ludwighttp://code.activestate.com/recipes/users/4172687/http://code.activestate.com/recipes/576992-wsgi-spnego-middleware/

<p style="color: grey"> Python recipe 576992 by <a href="/recipes/users/4172687/">Sven Ludwig</a> (<a href="/recipes/tags/kerberos/">kerberos</a>, <a href="/recipes/tags/spnego/">spnego</a>, <a href="/recipes/tags/wsgi/">wsgi</a>, <a href="/recipes/tags/wsgi_middleware/">wsgi_middleware</a>). </p> <p>Kerberos Single Sign On wsgi middleware</p>

2009-05-28T16:32:11-07:00Brendan O'Connorhttp://code.activestate.com/recipes/users/4170520/http://code.activestate.com/recipes/576784-wsgi-option-parsing-type-conversion/

<p style="color: grey"> Python recipe 576784 by <a href="/recipes/users/4170520/">Brendan O'Connor</a> (<a href="/recipes/tags/option_parsing/">option_parsing</a>, <a href="/recipes/tags/wsgi/">wsgi</a>). Revision 2. </p> <p>fetches named parameters from the WSGI querystring, plus defaults for missing values, and type conversions so you dont accidentally have strings when you want numbers.</p>