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    <p>If an exception occurs in a thread, the best way is to re-raise it in the caller thread during <code>join</code>. You can get information about the exception currently being handled using the <code>sys.exc_info()</code> function. This information can simply be stored as a property of the thread object until <code>join</code> is called, at which point it can be re-raised.</p> <p>Note that a <code>Queue.Queue</code> (as suggested in other answers) is not necessary in this simple case where the thread <em>throws at most 1 exception</em> and <em>completes right after throwing an exception</em>. We avoid race conditions by simply waiting for the thread to complete.</p> <p>For example, extend <code>ExcThread</code> (below), overriding <code>excRun</code> (instead of <code>run</code>).</p> <p><strong>Python 2.x:</strong></p> <pre><code>import threading class ExcThread(threading.Thread): def excRun(self): pass def run(self): self.exc = None try: # Possibly throws an exception self.excRun() except: import sys self.exc = sys.exc_info() # Save details of the exception thrown but don't rethrow, # just complete the function def join(self): threading.Thread.join(self) if self.exc: msg = "Thread '%s' threw an exception: %s" % (self.getName(), self.exc[1]) new_exc = Exception(msg) raise new_exc.__class__, new_exc, self.exc[2] </code></pre> <p><strong>Python 3.x:</strong></p> <p>The 3 argument form for <code>raise</code> is gone in Python 3, so change the last line to:</p> <pre><code>raise new_exc.with_traceback(self.exc[2]) </code></pre>
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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