New submission from Barry A. Warsaw <ba...@python.org>:
This looks like a serious regression in 3.7. @ned.deily - I'm marking this as
a release blocker, but feel free of course to downgrade it.
Run the following as
$ python3.6 badconfig.py
Hey, it works!
$ python3.7 badconfig.py
Traceback (most recent call last):
File "../badconfig.py", line 77, in <module>
fileConfig(inifile.name, defaults=GUNICORN_DEFAULTS)
File "/Users/barry/projects/python/cpython/Lib/logging/config.py", line 65,
in fileConfig
cp = configparser.ConfigParser(defaults)
File "/Users/barry/projects/python/cpython/Lib/configparser.py", line 639, in
__init__
self._read_defaults(defaults)
File "/Users/barry/projects/python/cpython/Lib/configparser.py", line 1212,
in _read_defaults
self.read_dict({self.default_section: defaults})
File "/Users/barry/projects/python/cpython/Lib/configparser.py", line 754, in
read_dict
self.set(section, key, value)
File "/Users/barry/projects/python/cpython/Lib/configparser.py", line 1200,
in set
super().set(section, option, value)
File "/Users/barry/projects/python/cpython/Lib/configparser.py", line 895, in
set
value)
File "/Users/barry/projects/python/cpython/Lib/configparser.py", line 403, in
before_set
"position %d" % (value, tmp_value.find('%')))
ValueError: invalid interpolation syntax in "{'generic': {'format':
'%(asctime)s [%(process)d] [%(levelname)s] %(message)s', 'datefmt': '[%Y-%m-%d
%H:%M:%S %z]', 'class': 'logging.Formatter'}}" at position 26
I'm still investigating, but wanted to get the bug filed asap.
----------
assignee: barry
files: badconfig.py
keywords: 3.7regression
messages: 318980
nosy: barry, ned.deily
priority: release blocker
severity: normal
stage: needs patch
status: open
title: Regression in logging configuration
type: behavior
versions: Python 3.7, Python 3.8
Added file: https://bugs.python.org/file47635/badconfig.py
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<https://bugs.python.org/issue33802>
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