Here's the output when I run py_mem_leak as run from the original bug report:
$ ./py_mem_leak
=================================================================
==29074==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 343936 byte(s) in 128 object(s) allocated from:
#0 0x7f65f2196762 (/home/philipp/py_mem_leak+0xc7762)
#1 0x7f65f1915437 (/usr/lib/x86_64-linux-gnu/libpython3.4m.so.1.0+0xa9437)
Direct leak of 26432 byte(s) in 118 object(s) allocated from:
#0 0x7f65f2196762 (/home/philipp/py_mem_leak+0xc7762)
#1 0x7f65f1916bd3 (/usr/lib/x86_64-linux-gnu/libpython3.4m.so.1.0+0xaabd3)
Direct leak of 12320 byte(s) in 1 object(s) allocated from:
#0 0x7f65f2196762 (/home/philipp/py_mem_leak+0xc7762)
#1 0x7f65f1916e8e (/usr/lib/x86_64-linux-gnu/libpython3.4m.so.1.0+0xaae8e)
Direct leak of 10539 byte(s) in 15 object(s) allocated from:
#0 0x7f65f2196762 (/home/philipp/py_mem_leak+0xc7762)
#1 0x7f65f18e2c27 (/usr/lib/x86_64-linux-gnu/libpython3.4m.so.1.0+0x76c27)
Direct leak of 224 byte(s) in 1 object(s) allocated from:
#0 0x7f65f2196762 (/home/philipp/py_mem_leak+0xc7762)
#1 0x7f65f1916f89 (/usr/lib/x86_64-linux-gnu/libpython3.4m.so.1.0+0xaaf89)
Direct leak of 160 byte(s) in 2 object(s) allocated from:
#0 0x7f65f2196762 (/home/philipp/py_mem_leak+0xc7762)
#1 0x7f65f191f3e7 (/usr/lib/x86_64-linux-gnu/libpython3.4m.so.1.0+0xb33e7)
Direct leak of 128 byte(s) in 1 object(s) allocated from:
#0 0x7f65f2196762 (/home/philipp/py_mem_leak+0xc7762)
#1 0x7f65f191f562 (/usr/lib/x86_64-linux-gnu/libpython3.4m.so.1.0+0xb3562)
Direct leak of 56 byte(s) in 3 object(s) allocated from:
#0 0x7f65f2196762 (/home/philipp/py_mem_leak+0xc7762)
#1 0x7f65f193f566 (/usr/lib/x86_64-linux-gnu/libpython3.4m.so.1.0+0xd3566)
Indirect leak of 29616 byte(s) in 33 object(s) allocated from:
#0 0x7f65f2196762 (/home/philipp/py_mem_leak+0xc7762)
#1 0x7f65f18e2c27 (/usr/lib/x86_64-linux-gnu/libpython3.4m.so.1.0+0x76c27)
Indirect leak of 1920 byte(s) in 15 object(s) allocated from:
#0 0x7f65f2196762 (/home/philipp/py_mem_leak+0xc7762)
#1 0x7f65f1915a6d (/usr/lib/x86_64-linux-gnu/libpython3.4m.so.1.0+0xa9a6d)
Indirect leak of 832 byte(s) in 2 object(s) allocated from:
#0 0x7f65f2196762 (/home/philipp/py_mem_leak+0xc7762)
#1 0x7f65f1915437 (/usr/lib/x86_64-linux-gnu/libpython3.4m.so.1.0+0xa9437)
SUMMARY: AddressSanitizer: 426163 byte(s) leaked in 319 allocation(s).
