Misc/NEWS.d/next/Core and Builtins/2019-06-26-17-27-26.bpo-37414.o6Lnbc.rst - platform/external/python/cpython3 - Gitiles

 The undocumented ``sys.callstats()`` function has been removed. Since Python
 3.7, it was deprecated and always returned ``None``. It required a special
 build option ``CALL_PROFILE`` which was already removed in Python 3.7.
	The undocumented ``sys.callstats()`` function has been removed. Since Python
	3.7, it was deprecated and always returned ``None``. It required a special
	build option ``CALL_PROFILE`` which was already removed in Python 3.7.