[lxml-dev] Leaking tracebacks

[Christian Heimes]

Christian Heimes wrote:
> import sys
> import pkg_resources
> pkg_resources.require("lxml==%s" % sys.argv[1])
> 
> from lxml import etree
> 
> class SampleException(Exception):
>      pass
> 
> def test():
>      print "lxml: %s, %s, %s" % (etree.LXML_VERSION,
>                                  etree.LIBXML_VERSION,
>                                  etree.LIBXSLT_VERSION)
>      print "SampleException start: %i" % sys.getrefcount(SampleException)
>      for i in range(1000):
>          try:
>              raise SampleException
>          except Exception, err:

                # this removes the ref leak
                sys.exc_clear()

>              el = etree.Element("test")
>              if i == 999:
>                  print "exception: %i" % sys.getrefcount(err)
>      print "SampleException stop: %i" % sys.getrefcount(SampleException)
> 
> if __name__ == "__main__":

hristian