Python interpreter works abnormally after interrupting logging.config.fileConfig()

[xxm]

BPO	43663

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2021-03-30.04:34:43.269>
labels = ['type-bug', 'library', '3.9']
title = 'Python interpreter works abnormally after interrupting logging.config.fileConfig()'
updated_at = <Date 2021-03-30.04:34:43.269>
user = 'https://bugs.python.org/xxm'

bugs.python.org fields:

activity = <Date 2021-03-30.04:34:43.269>
actor = 'xxm'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2021-03-30.04:34:43.269>
creator = 'xxm'
dependencies = []
files = []
hgrepos = []
issue_num = 43663
keywords = []
message_count = 1.0
messages = ['389788']
nosy_count = 1.0
nosy_names = ['xxm']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue43663'
versions = ['Python 3.9']

[xxm]

Python interpreter cannot work well and report errors after interrupting logging.config.fileConfig()

Reproduce step:

1. type python3 in console
2. type import logging.config; logging.config.fileConfig({2,2,'sdf'},'')
3. ctrl C
4. type 1/0

-------------------------------------------------------------------------------

Python 3.9.2 (default, Mar 12 2021, 15:08:35) 
[GCC 7.5.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> 1/0
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ZeroDivisionError: division by zero
>>> import logging.config
>>> logging.config.fileConfig({2,2,'sdf'},'') 
^C>>> 1/0
>>> 

---

Expected result: 1/0 will return a ZeroDivisionError after interrupting " logging.config.fileConfig({2,2,'sdf'},'') "
Actual result: Nothing output

Python 3.9.2, Ubuntu 16.04

[vsajip]

You're passing an invalid value for the first argument to fileConfig().