我在flask-sqlalchemy中创建了一个测试表，该表将一堆文件路径存储在sqlite3数据库的Unicode列中。其中许多文件路径的字符都位于utf-8之外。
如果我使用flask run运行调试服务器，则一切正常，并且我的文件路径已正确添加到数据库中。
如果我正在通过实时apache2 mod-wsgi服务器运行烧瓶，则SqlAlchemy会抛出：UnicodeEncodeError: 'utf-8' codec can't encode characters in position 55-81: surrogates not allowed
此查询抛出此错误：
models.Test.query.filter_by(file_path=path_file).first()
debug和wsgi服务器都运行Python 3.6.8
解决此问题的正确方法是什么？
谢谢！
编辑：追溯追溯：
[Mon Aug 19 22:16:56.440632 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] [2019-08-19 22:16:56,436] ERROR in app: Exception on /library/test [POST]
[Mon Aug 19 22:16:56.440658 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] Traceback (most recent call last):
[Mon Aug 19 22:16:56.440665 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/flask/app.py", line 2446, in wsgi_app
[Mon Aug 19 22:16:56.440671 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] response = self.full_dispatch_request()
[Mon Aug 19 22:16:56.440677 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/flask/app.py", line 1951, in full_dispatch_request
[Mon Aug 19 22:16:56.440683 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] rv = self.handle_user_exception(e)
[Mon Aug 19 22:16:56.440688 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/flask/app.py", line 1820, in handle_user_exception
[Mon Aug 19 22:16:56.440693 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] reraise(exc_type, exc_value, tb)
[Mon Aug 19 22:16:56.440699 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/flask/_compat.py", line 39, in reraise
[Mon Aug 19 22:16:56.440704 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] raise value
[Mon Aug 19 22:16:56.440709 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/flask/app.py", line 1949, in full_dispatch_request
[Mon Aug 19 22:16:56.440715 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] rv = self.dispatch_request()
[Mon Aug 19 22:16:56.440720 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/flask/app.py", line 1935, in dispatch_request
[Mon Aug 19 22:16:56.440726 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] return self.view_functions[rule.endpoint](**req.view_args)
[Mon Aug 19 22:16:56.440732 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/sapi/auth.py", line 93, in decorated
[Mon Aug 19 22:16:56.440737 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] return f(*args, **kwargs)
[Mon Aug 19 22:16:56.440742 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/sapi/routes/library.py", line 16, in test_scan_library
[Mon Aug 19 22:16:56.440747 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] library_test.scan_library()
[Mon Aug 19 22:16:56.440753 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/sapi/library_test.py", line 31, in scan_library
[Mon Aug 19 22:16:56.440758 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] check_track = models.Test.query.filter_by(file_path=path_file).first()
[Mon Aug 19 22:16:56.440764 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3228, in first
[Mon Aug 19 22:16:56.440781 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] ret = list(self[0:1])
[Mon Aug 19 22:16:56.440786 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3018, in __getitem__
[Mon Aug 19 22:16:56.440792 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] return list(res)
[Mon Aug 19 22:16:56.440796 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3330, in __iter__
[Mon Aug 19 22:16:56.440801 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] return self._execute_and_instances(context)
[Mon Aug 19 22:16:56.440807 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3355, in _execute_and_instances
[Mon Aug 19 22:16:56.440812 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] result = conn.execute(querycontext.statement, self._params)
[Mon Aug 19 22:16:56.440818 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 988, in execute
[Mon Aug 19 22:16:56.440823 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] return meth(self, multiparams, params)
[Mon Aug 19 22:16:56.440827 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/sqlalchemy/sql/elements.py", line 287, in _execute_on_connection
[Mon Aug 19 22:16:56.440832 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] return connection._execute_clauseelement(self, multiparams, params)
[Mon Aug 19 22:16:56.440837 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1107, in _execute_clauseelement
[Mon Aug 19 22:16:56.440842 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] distilled_params,
[Mon Aug 19 22:16:56.440847 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1248, in _execute_context
[Mon Aug 19 22:16:56.440852 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] e, statement, parameters, cursor, context
[Mon Aug 19 22:16:56.440857 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1468, in _handle_dbapi_exception
[Mon Aug 19 22:16:56.440863 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] util.reraise(*exc_info)
[Mon Aug 19 22:16:56.440868 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 153, in reraise
[Mon Aug 19 22:16:56.440873 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] raise value
[Mon Aug 19 22:16:56.440878 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1244, in _execute_context
[Mon Aug 19 22:16:56.440883 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] cursor, statement, parameters, context
[Mon Aug 19 22:16:56.440887 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] File "/mnt/stor/www/sapi/venv/lib/python3.6/site-packages/sqlalchemy/engine/default.py", line 552, in do_execute
[Mon Aug 19 22:16:56.440893 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] cursor.execute(statement, parameters)
[Mon Aug 19 22:16:56.440900 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554] UnicodeEncodeError: 'utf-8' codec can't encode characters in position 55-81: surrogates not allowed
[Mon Aug 19 22:16:56.440939 2019] [wsgi:error] [pid 21975] [remote 192.168.1.1:54554]