/usr/lib/python3/dist-packages/IPython/testing/plugin/show_refs.py is in python3-ipython 5.5.0-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | """Simple script to show reference holding behavior.
This is used by a companion test case.
"""
from __future__ import print_function
import gc
class C(object):
def __del__(self):
pass
#print 'deleting object...' # dbg
if __name__ == '__main__':
c = C()
c_refs = gc.get_referrers(c)
ref_ids = list(map(id,c_refs))
print('c referrers:',list(map(type,c_refs)))
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