id summary reporter owner description type status component version severity resolution keywords cc stage has_patch needs_docs needs_tests needs_better_patch easy ui_ux 27308 BytesWarning exception raised when running with python 3 -bb option Gustavo J. A. M. Carneiro nobody "When your template file does not exist, naturally Django gives an exception. But if TEMPLATE_DEBUG is True, it also tries to generate a pretty html traceback, and this is where the bug is, if you try to run with the python 3 -bb option, which complains when you try to do str() on a bytes value. I have Django version 1.10.1. {{{ $ python3 -bb Python 3.5.2 (default, Sep 10 2016, 08:21:44) [GCC 5.4.0 20160609] on linux Type ""help"", ""copyright"", ""credits"" or ""license"" for more information. >>> str(b'') Traceback (most recent call last): File """", line 1, in BytesWarning: str() on a bytes instance >>> repr(b'') ""b''"" >>> }}} Traceback: {{{ 2016-10-03 17:47:29,582 ERROR production.py:138 GET /login -> TemplateDoesNotExist(b'loginxxx.html',) Traceback (most recent call last): File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 39, in inner response = get_response(request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/base.py"", line 187, in _get_response response = self.process_exception_by_middleware(e, request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/base.py"", line 185, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/decorators.py"", line 149, in _wrapped_view response = view_func(request, *args, **kwargs) File ""/home/gjc/projects/molly/mollybet/apps/home/views.py"", line 124, in login new_molly_url=settings.NEW_MOLLY_URL) File ""/home/gjc/projects/molly/mollybet/webutils.py"", line 167, in render t = loader.get_template((name + '.html').encode(""ascii"")) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/template/loader.py"", line 25, in get_template raise TemplateDoesNotExist(template_name, chain=chain) django.template.exceptions.TemplateDoesNotExist: Internal Server Error: /login Traceback (most recent call last): File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 39, in inner response = get_response(request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/base.py"", line 187, in _get_response response = self.process_exception_by_middleware(e, request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/base.py"", line 185, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/decorators.py"", line 149, in _wrapped_view response = view_func(request, *args, **kwargs) File ""/home/gjc/projects/molly/mollybet/apps/home/views.py"", line 124, in login new_molly_url=settings.NEW_MOLLY_URL) File ""/home/gjc/projects/molly/mollybet/webutils.py"", line 167, in render t = loader.get_template((name + '.html').encode(""ascii"")) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/template/loader.py"", line 25, in get_template raise TemplateDoesNotExist(template_name, chain=chain) django.template.exceptions.TemplateDoesNotExist: 2016-10-03 17:47:29,583 ERROR exception.py:124 Internal Server Error: /login Traceback (most recent call last): File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 39, in inner response = get_response(request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/base.py"", line 187, in _get_response response = self.process_exception_by_middleware(e, request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/base.py"", line 185, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/decorators.py"", line 149, in _wrapped_view response = view_func(request, *args, **kwargs) File ""/home/gjc/projects/molly/mollybet/apps/home/views.py"", line 124, in login new_molly_url=settings.NEW_MOLLY_URL) File ""/home/gjc/projects/molly/mollybet/webutils.py"", line 167, in render t = loader.get_template((name + '.html').encode(""ascii"")) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/template/loader.py"", line 25, in get_template raise TemplateDoesNotExist(template_name, chain=chain) django.template.exceptions.TemplateDoesNotExist: 2016-10-03 17:47:29,599 ERROR production.py:138 GET /login -> BytesWarning('str() on a bytes instance',) Traceback (most recent call last): File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 39, in inner response = get_response(request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/base.py"", line 187, in _get_response response = self.process_exception_by_middleware(e, request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/base.py"", line 185, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/decorators.py"", line 149, in _wrapped_view response = view_func(request, *args, **kwargs) File ""/home/gjc/projects/molly/mollybet/apps/home/views.py"", line 124, in login new_molly_url=settings.NEW_MOLLY_URL) File ""/home/gjc/projects/molly/mollybet/webutils.py"", line 167, in render t = loader.get_template((name + '.html').encode(""ascii"")) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/template/loader.py"", line 25, in get_template raise TemplateDoesNotExist(template_name, chain=chain) django.template.exceptions.TemplateDoesNotExist: During handling of the above exception, another exception occurred: Traceback (most recent call last): File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 39, in inner response = get_response(request) File ""/home/gjc/projects/molly/mollybet/apps/home/geoipblocking.py"", line 17, in middleware return get_response(request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 41, in inner response = response_for_exception(request, exc) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 86, in response_for_exception response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info()) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 128, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/views/debug.py"", line 84, in technical_500_response html = reporter.get_traceback_html() File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/views/debug.py"", line 316, in get_traceback_html c = Context(self.get_traceback_data(), use_l10n=False) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/views/debug.py"", line 308, in get_traceback_data c['exception_value'] = smart_text(self.exc_value, errors='replace') File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/encoding.py"", line 41, in smart_text return force_text(s, encoding, strings_only, errors) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/encoding.py"", line 76, in force_text s = six.text_type(s) BytesWarning: str() on a bytes instance Internal Server Error: /login Traceback (most recent call last): File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 39, in inner response = get_response(request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/base.py"", line 187, in _get_response response = self.process_exception_by_middleware(e, request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/base.py"", line 185, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/decorators.py"", line 149, in _wrapped_view response = view_func(request, *args, **kwargs) File ""/home/gjc/projects/molly/mollybet/apps/home/views.py"", line 124, in login new_molly_url=settings.NEW_MOLLY_URL) File ""/home/gjc/projects/molly/mollybet/webutils.py"", line 167, in render t = loader.get_template((name + '.html').encode(""ascii"")) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/template/loader.py"", line 25, in get_template raise TemplateDoesNotExist(template_name, chain=chain) django.template.exceptions.TemplateDoesNotExist: During handling of the above exception, another exception occurred: Traceback (most recent call last): File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 39, in inner response = get_response(request) File ""/home/gjc/projects/molly/mollybet/apps/home/geoipblocking.py"", line 17, in middleware return get_response(request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 41, in inner response = response_for_exception(request, exc) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 86, in response_for_exception response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info()) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 128, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/views/debug.py"", line 84, in technical_500_response html = reporter.get_traceback_html() File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/views/debug.py"", line 316, in get_traceback_html c = Context(self.get_traceback_data(), use_l10n=False) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/views/debug.py"", line 308, in get_traceback_data c['exception_value'] = smart_text(self.exc_value, errors='replace') File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/encoding.py"", line 41, in smart_text return force_text(s, encoding, strings_only, errors) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/encoding.py"", line 76, in force_text s = six.text_type(s) BytesWarning: str() on a bytes instance 2016-10-03 17:47:29,601 ERROR exception.py:124 Internal Server Error: /login Traceback (most recent call last): File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 39, in inner response = get_response(request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/base.py"", line 187, in _get_response response = self.process_exception_by_middleware(e, request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/base.py"", line 185, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/decorators.py"", line 149, in _wrapped_view response = view_func(request, *args, **kwargs) File ""/home/gjc/projects/molly/mollybet/apps/home/views.py"", line 124, in login new_molly_url=settings.NEW_MOLLY_URL) File ""/home/gjc/projects/molly/mollybet/webutils.py"", line 167, in render t = loader.get_template((name + '.html').encode(""ascii"")) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/template/loader.py"", line 25, in get_template raise TemplateDoesNotExist(template_name, chain=chain) django.template.exceptions.TemplateDoesNotExist: During handling of the above exception, another exception occurred: Traceback (most recent call last): File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 39, in inner response = get_response(request) File ""/home/gjc/projects/molly/mollybet/apps/home/geoipblocking.py"", line 17, in middleware return get_response(request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 41, in inner response = response_for_exception(request, exc) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 86, in response_for_exception response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info()) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 128, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/views/debug.py"", line 84, in technical_500_response html = reporter.get_traceback_html() File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/views/debug.py"", line 316, in get_traceback_html c = Context(self.get_traceback_data(), use_l10n=False) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/views/debug.py"", line 308, in get_traceback_data c['exception_value'] = smart_text(self.exc_value, errors='replace') File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/encoding.py"", line 41, in smart_text return force_text(s, encoding, strings_only, errors) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/encoding.py"", line 76, in force_text s = six.text_type(s) BytesWarning: str() on a bytes instance 2016-10-03 17:47:29,687 ERROR production.py:138 GET /login -> BytesWarning('str() on a bytes instance',) Traceback (most recent call last): File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 39, in inner response = get_response(request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/base.py"", line 187, in _get_response response = self.process_exception_by_middleware(e, request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/base.py"", line 185, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/decorators.py"", line 149, in _wrapped_view response = view_func(request, *args, **kwargs) File ""/home/gjc/projects/molly/mollybet/apps/home/views.py"", line 124, in login new_molly_url=settings.NEW_MOLLY_URL) File ""/home/gjc/projects/molly/mollybet/webutils.py"", line 167, in render t = loader.get_template((name + '.html').encode(""ascii"")) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/template/loader.py"", line 25, in get_template raise TemplateDoesNotExist(template_name, chain=chain) django.template.exceptions.TemplateDoesNotExist: During handling of the above exception, another exception occurred: Traceback (most recent call last): File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 39, in inner response = get_response(request) File ""/home/gjc/projects/molly/mollybet/apps/home/geoipblocking.py"", line 17, in middleware return get_response(request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 41, in inner response = response_for_exception(request, exc) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 86, in response_for_exception response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info()) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 128, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/views/debug.py"", line 84, in technical_500_response html = reporter.get_traceback_html() File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/views/debug.py"", line 316, in get_traceback_html c = Context(self.get_traceback_data(), use_l10n=False) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/views/debug.py"", line 308, in get_traceback_data c['exception_value'] = smart_text(self.exc_value, errors='replace') File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/encoding.py"", line 41, in smart_text return force_text(s, encoding, strings_only, errors) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/utils/encoding.py"", line 76, in force_text s = six.text_type(s) BytesWarning: str() on a bytes instance During handling of the above exception, another exception occurred: Traceback (most recent call last): File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 39, in inner response = get_response(request) File ""/home/gjc/projects/molly/mollybet/apps/home/auth.py"", line 113, in middleware return get_response(request) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 41, in inner response = response_for_exception(request, exc) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 86, in response_for_exception response = handle_uncaught_exception(request, get_resolver(get_urlconf()), sys.exc_info()) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/core/handlers/exception.py"", line 128, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/views/debug.py"", line 84, in technical_500_response html = reporter.get_traceback_html() File ""/home/gjc/projects/molly/env/lib/python3.4/site-packages/django/views/debug.py"", line 317, in get_traceback_html return t.render(c) [...] }}}" Cleanup/optimization closed Core (Other) dev Normal fixed Ready for checkin 1 0 0 0 0 0