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由 Stefan Hajnoczi 提交于
The pkgutil.iter_modules() function provides a way to enumerate child modules. Unfortunately it's missing in Python <2.7 so we must implement similar behavior ourselves. Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Reviewed-by: NLluís Vilanova <vilanova@ac.upc.edu>
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