Crash in Connector/Python's MrdbPool_dealloc

$ python3 ./connection_pool_test.py 

Segmentation fault (core dumped)

$ gdb python3

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Reading symbols from python3...Reading symbols from /usr/lib/debug/.build-id/5f/4de7b7974f514b4d5baf54bc956904a450c144.debug...done.

done.

(gdb) run ./connection_pool_test.py

Starting program: /usr/bin/python3 ./connection_pool_test.py

[Thread debugging using libthread_db enabled]

Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.

0x00007ffff5f356da in MrdbPool_dealloc (self=0x7ffff50b92f0) at src/mariadb_pooling.c:311

311	src/mariadb_pooling.c: No such file or directory.

(gdb) where

#0  0x00007ffff5f356da in MrdbPool_dealloc (self=0x7ffff50b92f0) at src/mariadb_pooling.c:311

#1  0x000000000055146f in type_call.lto_priv () at ../Objects/typeobject.c:918

#2  0x00000000005a9cbc in _PyObject_FastCallDict (kwargs=<optimized out>, nargs=0, args=0xaefb40, func=<type at remote 0x7ffff61411a0>) at ../Objects/tupleobject.c:131

#3  _PyObject_FastCallKeywords () at ../Objects/abstract.c:2496

#4  0x000000000050a5c3 in call_function.lto_priv () at ../Python/ceval.c:4875

#5  0x000000000050cd96 in _PyEval_EvalFrameDefault () at ../Python/ceval.c:3351

#6  0x0000000000509758 in PyEval_EvalFrameEx (throwflag=0, f=Frame 0xaef9b8, for file ./connection_pool_test.py, line 16, in create_connection_pool ()) at ../Python/ceval.c:754

#7  _PyFunction_FastCall (globals=<optimized out>, nargs=11467192, args=<optimized out>, co=<optimized out>) at ../Python/ceval.c:4933

#8  fast_function.lto_priv () at ../Python/ceval.c:4968

#9  0x000000000050a48d in call_function.lto_priv () at ../Python/ceval.c:4872

#10 0x000000000050bfb4 in _PyEval_EvalFrameDefault () at ../Python/ceval.c:3335

#11 0x0000000000507d64 in PyEval_EvalFrameEx (throwflag=0, f=Frame 0xae00f8, for file ./connection_pool_test.py, line 24, in <module> ()) at ../Python/ceval.c:754

#12 _PyEval_EvalCodeWithName.lto_priv.1820 () at ../Python/ceval.c:4166

#13 0x000000000050ae13 in PyEval_EvalCodeEx (closure=0x0, kwdefs=0x0, defcount=0, defs=0x0, kwcount=0, kws=0x0, argcount=0, args=0x0, locals=<optimized out>, globals=<optimized out>, _co=<optimized out>)

    at ../Python/ceval.c:4187

#14 PyEval_EvalCode (co=<optimized out>, globals=<optimized out>, locals=<optimized out>) at ../Python/ceval.c:731

#15 0x0000000000634c82 in run_mod () at ../Python/pythonrun.c:1025

#16 0x0000000000634d37 in PyRun_FileExFlags () at ../Python/pythonrun.c:978

#17 0x00000000006384ef in PyRun_SimpleFileExFlags () at ../Python/pythonrun.c:419

#18 0x00000000006386c5 in PyRun_AnyFileExFlags () at ../Python/pythonrun.c:81

#19 0x0000000000639091 in run_file (p_cf=0x7fffffffde5c, filename=<optimized out>, fp=<optimized out>) at ../Modules/main.c:340

#20 Py_Main () at ../Modules/main.c:810

#21 0x00000000004b0d00 in main (argc=2, argv=0x7fffffffe058) at ../Programs/python.c:69

$ python3 --version

Python 3.6.9

$ cat /etc/os-release 

NAME="Ubuntu"

VERSION="18.04.4 LTS (Bionic Beaver)"

ID=ubuntu

ID_LIKE=debian

PRETTY_NAME="Ubuntu 18.04.4 LTS"

VERSION_ID="18.04"

HOME_URL="https://www.ubuntu.com/"

SUPPORT_URL="https://help.ubuntu.com/"

BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"

PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"

VERSION_CODENAME=bionic

UBUNTU_CODENAME=bionic

$ tar -xvzf mariadb-connector-python-1.0.0.tar.gz

$ pip3 install mariadb-1.0.0