/usr/bin/pypy-sandbox is in python-pypy.translator.sandbox 1.8+dfsg-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | #!/usr/bin/python
import os
import pypy.translator.sandbox
fn = os.path.dirname(pypy.translator.sandbox.__file__)
fn = os.path.join(fn, 'pypy_interact.py')
execfile(fn)
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