Dump stacktraces of all active Threads

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As jitter points out in an earlier answer sys._current_frames() gives you what you need for v2.5+. For the lazy the following code snippet worked for me and may help you:

print >> sys.stderr, "\n*** STACKTRACE - START ***\n"
code = []
for threadId, stack in sys._current_frames().items():
    code.append("\n# ThreadID: %s" % threadId)
    for filename, lineno, name, line in traceback.extract_stack(stack):
        code.append('File: "%s", line %d, in %s' % (filename,
                                                    lineno, name))
        if line:
            code.append("  %s" % (line.strip()))

for line in code:
    print >> sys.stderr, line
print >> sys.stderr, "\n*** STACKTRACE - END ***\n"

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