Django UnicodeDecodeError 在错误报告期间

问：

错误报告不断崩溃。在回溯中，我首先得到实际错误，然后很多倍相同

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/var/www/exc2-backend/.venv/lib/python3.6/site-packages/django/core/handlers/exception.py", line 34, in inner
    response = get_response(request)
  File "/var/www/exc2-backend/.venv/lib/python3.6/site-packages/django/utils/deprecation.py", line 94, in __call__
    response = response or self.get_response(request)
  File "/var/www/exc2-backend/.venv/lib/python3.6/site-packages/django/core/handlers/exception.py", line 36, in inner
    response = response_for_exception(request, exc)
  File "/var/www/exc2-backend/.venv/lib/python3.6/site-packages/django/core/handlers/exception.py", line 90, in response_for_exception
    response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info())
  File "/var/www/exc2-backend/.venv/lib/python3.6/site-packages/django/core/handlers/exception.py", line 125, in handle_uncaught_exception
    return debug.technical_500_response(request, *exc_info)
  File "/var/www/exc2-backend/.venv/lib/python3.6/site-packages/django/views/debug.py", line 94, in technical_500_response
    html = reporter.get_traceback_html()
  File "/var/www/exc2-backend/.venv/lib/python3.6/site-packages/django/views/debug.py", line 332, in get_traceback_html
    t = DEBUG_ENGINE.from_string(fh.read())
  File "/var/www/exc2-backend/.venv/lib/python3.6/encodings/ascii.py", line 26, in decode
    return codecs.ascii_decode(input, self.errors)[0]
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 9735: ordinal not in range(128)

我正在使用 和 .我不明白这是从哪里来的。Python3.6Django==2.2UnicodeDecodeError

在生产服务器上运行

from django.test.client import RequestFactory
import sys
from django.views.debug import ExceptionReporter

request = RequestFactory().get('/dummy')
exc_info = sys.exc_info()
reporter = ExceptionReporter(request, is_email=True, *exc_info)
reporter.get_traceback_html()

工作而不会崩溃。

我正在使用以下命令使用 gunicorn 运行我的网站

/var/www/exc2-backend/.venv/bin/gunicorn exc2_backend.wsgi --name "exc2_backend" --workers=4 --bind=0.0.0.0:8000 --user="www-data" --group="www-data"

我缩小了问题范围，这发生在这里

from django.views.debug import ExceptionReporter, CURRENT_DIR, DEBUG_ENGINE
from pathlib import Path

with Path(CURRENT_DIR, 'templates', 'technical_500.html').open() as fh:
    data = fh.read()

如果我更改为 ，则没有错误。Path(...).open(encoding='utf8')

该错误不会发生在 shell 上，只有在使用 gunicorn 运行代码时才会发生。

在服务器上，即使通过 gunicorn，返回 ，但返回 ！sys.getdefaultencoding()utf-8locale.getpreferredencoding(False)ANSI_X3.4-1968

有什么想法吗？