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POPython: multiprocessing Pool map with init(pass handler to mapped function), AND uninit
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2011-10-20T13:53:04.503
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2011-10-21T01:48:04.863
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2011-10-21T01:48:04.863
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I want to do something like this using <code>Pool</code>: <ol> <li>For each process in the Pool, initialize a handler (database handler, http handler, whatever).</li> <li>Call the mapped function with the handler initialized in step 1.</li> <li>Call an uninitialize function with the handler initialized in step 1.</li> </ol> Is that possible with Pool and map, or do I have other better/simpler choices? Should I just write my own multiprocessing.pool.worker()? here is basically what I want to do: <pre><code># per worker lifetime conn = httplib.HTTPConnection("localhost",8080) # to be mapped, with conn from worker as a arg conn.request("GET", "/some/url") r1 = conn.getresponse() r1.status # per worker lifetime conn.close() </code></pre>
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<python><multiprocessing><pool>
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Python: multiprocessing Pool map with init(pass handler to mapped function), AND uninit
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1. COcould you post a code snippet showing a sequential implementation of what you want to do, and point out what you want to parallelize?
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