I think it would do better without extra newlines, and could just match the default output from Python itself.
Currently:
Traceback:
File "…/Vcs/django/django/template/base.py" in __init__
663. token.Meh
During handling of the above exception ('str' object has no attribute 'Meh'), another exception occurred:
File "…/Vcs/django/django/core/handlers/exception.py" in inner
34. response = get_response(request)
File "…/Vcs/django/django/core/handlers/base.py" in _get_response
145. response = self.process_exception_by_middleware(e, request)
File "…/Vcs/django/django/core/handlers/base.py" in _get_response
143. response = response.render()
File "…/Vcs/django/django/template/response.py" in render
106. self.content = self.rendered_content
File "…/Vcs/django/django/template/response.py" in rendered_content
83. content = template.render(context, self._request)
File "…/Vcs/django/django/template/backends/django.py" in render
61. return self.template.render(context)
File "…/Vcs/django/django/template/base.py" in render
171. return self._render(context)
File "…/Vcs/django/django/test/utils.py" in instrumented_test_render
96. return self.nodelist.render(context)
File "…/Vcs/django/django/template/base.py" in render
940. bit = node.render_annotated(context)
File "…/Vcs/django/django/template/base.py" in render_annotated
907. return self.render(context)
File "…/Vcs/django/django/template/loader_tags.py" in render
150. return compiled_parent._render(context)
File "…/Vcs/django/django/test/utils.py" in instrumented_test_render
96. return self.nodelist.render(context)
File "…/Vcs/django/django/template/base.py" in render
940. bit = node.render_annotated(context)
File "…/Vcs/django/django/template/base.py" in render_annotated
907. return self.render(context)
File "…/Vcs/django/django/template/loader_tags.py" in render
127. compiled_parent = self.get_parent(context)
File "…/Vcs/django/django/template/loader_tags.py" in get_parent
124. return self.find_template(parent, context)
File "…/Vcs/django/django/template/loader_tags.py" in find_template
104. template_name, skip=history,
File "…/Vcs/django/django/template/engine.py" in find_template
125. template = loader.get_template(name, skip=skip)
File "…/Vcs/django/django/template/loaders/base.py" in get_template
30. contents, origin, origin.template_name, self.engine,
File "…/Vcs/django/django/template/base.py" in __init__
156. self.nodelist = self.compile_nodelist()
File "…/Vcs/django/django/template/base.py" in compile_nodelist
194. return parser.parse()
File "…/Vcs/django/django/template/base.py" in parse
449. raise self.error(token, e)
File "…/Vcs/django/django/template/base.py" in parse
447. filter_expression = self.compile_filter(token.contents)
File "…/Vcs/django/django/template/base.py" in compile_filter
563. return FilterExpression(token, self)
File "…/Vcs/django/django/template/base.py" in __init__
666. "from '%s'" % (token[upto:], token))
Exception Type: TemplateSyntaxError at /a/login
Exception Value: Could not parse the remainder: '("foo")' from 'myecho("foo")'
Better:
Traceback (most recent call last):
File "…/Vcs/django/django/template/base.py", line 663, in __init__
token.Meh
During handling of the above exception ('str' object has no attribute 'Meh'), another exception occurred:
File "…/Vcs/django/django/core/handlers/exception.py", line 34, in inner
response = get_response(request)
File "…/Vcs/django/django/core/handlers/base.py", line 145, in _get_response
response = self.process_exception_by_middleware(e, request)
File "…/Vcs/django/django/core/handlers/base.py", line 143, in _get_response
response = response.render()
File "…/Vcs/django/django/template/response.py", line 106, in render
self.content = self.rendered_content
File "…/Vcs/django/django/template/response.py", line 83, in rendered_content
content = template.render(context, self._request)
File "…/Vcs/django/django/template/backends/django.py", line 61, in render
return self.template.render(context)
File "…/Vcs/django/django/template/base.py", line 171, in render
return self._render(context)
File "…/Vcs/django/django/test/utils.py", line 96, in instrumented_test_render
return self.nodelist.render(context)
File "…/Vcs/django/django/template/base.py", line 940, in render
bit = node.render_annotated(context)
File "…/Vcs/django/django/template/base.py", line 907, in render_annotated
return self.render(context)
File "…/Vcs/django/django/template/loader_tags.py", line 150, in render
return compiled_parent._render(context)
File "…/Vcs/django/django/test/utils.py", line 96, in instrumented_test_render
return self.nodelist.render(context)
File "…/Vcs/django/django/template/base.py", line 940, in render
bit = node.render_annotated(context)
File "…/Vcs/django/django/template/base.py", line 907, in render_annotated
return self.render(context)
File "…/Vcs/django/django/template/loader_tags.py", line 127, in render
compiled_parent = self.get_parent(context)
File "…/Vcs/django/django/template/loader_tags.py", line 124, in get_parent
return self.find_template(parent, context)
File "…/Vcs/django/django/template/loader_tags.py", line 104, in find_template
template_name, skip=history,
File "…/Vcs/django/django/template/engine.py", line 125, in find_template
template = loader.get_template(name, skip=skip)
File "…/Vcs/django/django/template/loaders/base.py", line 30, in get_template
contents, origin, origin.template_name, self.engine,
File "…/Vcs/django/django/template/base.py", line 156, in __init__
self.nodelist = self.compile_nodelist()
File "…/Vcs/django/django/template/base.py", line 194, in compile_nodelist
return parser.parse()
File "…/Vcs/django/django/template/base.py", line 449, in parse
raise self.error(token, e)
File "…/Vcs/django/django/template/base.py", line 447, in parse
filter_expression = self.compile_filter(token.contents)
File "…/Vcs/django/django/template/base.py", line 563, in compile_filter
return FilterExpression(token, self)
File "…/Vcs/django/django/template/base.py", line 666, in __init__
"from '%s'" % (token[upto:], token))
Exception Type: TemplateSyntaxError at /a/login
Exception Value: Could not parse the remainder: '("foo")' from 'myecho("foo")'
There are two other issues here: