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    <p>Are you running this under OS X 10.6? Apparently threads and importing modules for the first time does not play well together there. See if you can't import urllib2 outside of the thread?</p> <p>There are a few more details in the following thread: <a href="https://stackoverflow.com/questions/1540835/trace-bpt-trap-with-python-threading-module">Trace/BPT trap with Python threading module</a></p> <p>I'd try either moving the import of urllib to the top of the same file or, since it seems to be a problem only with importing a module for the first time in a thread, import it somewhere else as well, like in the same file as your main() function.</p> <p><strong>Edit:</strong> Which versions of OS X, Python, CherryPy and web.py are you running? I'm using OS X 10.5.8, Python 2.6, CherryPy 3.1.2 and web.py 0.33 and can't reproduce your problem using the below code:</p> <pre><code>import web urls = ( '/', 'index' ) app = web.application(urls, globals()) class index: def GET(self): from urllib2 import urlopen return urlopen("http://google.se/").read() if __name__ == "__main__": app.run() $ sudo python index.py 80 http://0.0.0.0:80/ 127.0.0.1:59601 - - [08/Nov/2009 09:46:40] "HTTP/1.1 GET /" - 200 OK 127.0.0.1:59604 - - [08/Nov/2009 09:46:40] "HTTP/1.1 GET /extern_js/f/CgJzdhICc2UgACswCjhBQB0sKzAOOAksKzAYOAQsKzAlOMmIASwrMCY4BSwrMCc4Aiw/dDWkSd2jmF8.js" - 404 Not Found 127.0.0.1:59601 - - [08/Nov/2009 09:46:40] "HTTP/1.1 GET /logos/elmo-hp.gif" - 404 Not Found 127.0.0.1:59601 - - [08/Nov/2009 09:46:40] "HTTP/1.1 GET /images/nav_logo7.png" - 404 Not Found </code></pre> <p>Is this code enough to reproduce the problem on your end? If not, I need more information in order to be of help.</p>
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    1. POTrace/BPT trap when calling urllib.urlopen
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    1. COYep, I'm running 10.6.1. How would I go about importing the module outside of the thread?
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      1. USDan Loewenherz
    2. CONot knowing how the rest of the file looks, I'd try moving the import statement out of get_url() to the top of the file.
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    3. COJust moved the import statement to the top. Still no dice.
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      1. USDan Loewenherz
 

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