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POpdb doesn't respond after pdb.set_trace() call
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  1. POpdb doesn't respond after pdb.set_trace() call
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    copied!<p>I have parent process calling its child. I've put <code>import pdb; pdb.set_trace()</code> into the child process code.</p> <p>When I launch the parent with <code>python -m pdb parent.py</code> it's getting frozen. The debugger doesn't respond to any command I type. But when I hit <code>quit</code> or <code>continue</code> it does exits code.</p> <p>It looks like pdb works, but doesn't produce any output.</p> <pre><code>$ python -m pdb parent.py n -m pdb parent.py &gt; d:\scripts\parent.py(53)&lt;module&gt;() -&gt; ''' (Pdb) c </code></pre> <p>It stops responding now.</p> <p>According to the trace I get after interruption, it was standing at the line just after the <code>pdb.set_trace()</code> call.</p> <pre><code>&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;&gt;[2013.06.13-10:02:06] : accessed by child.py Traceback (most recent call last): File "child.py", line 40, in &lt;module&gt; sys.stderr = open(Definition_h.ErrLog, 'a', 0, encoding=Definition_h.utf8) File "d:\scripts\Definition_h.py", line 863, in unicodeOpen def unicodeOpen(*args, **kwargs): File "C:\Program Files (x86)\Python 2.5.4\lib\bdb.py", line 50, in trace_dispatch return self.dispatch_call(frame, arg) File "C:\Program Files (x86)\Python 2.5.4\lib\bdb.py", line 79, in dispatch_call self.user_call(frame, arg) File "C:\Program Files (x86)\Python 2.5.4\lib\pdb.py", line 134, in user_call self.interaction(frame, None) File "C:\Program Files (x86)\Python 2.5.4\lib\pdb.py", line 187, in interaction self.cmdloop() File "C:\Program Files (x86)\Python 2.5.4\lib\cmd.py", line 148, in cmdloop import readline KeyboardInterrupt: !!!&lt;unprintable KeyboardInterrupt object&gt; Error in sys.excepthook: </code></pre>
 

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