Template Interface

Template interface is useful for template engine specific reporting when regular stack traces do not contain template data. This, for instance, is required in the Django framework where the templates do not integrate into the Python stack trace.

A rendered template. This is generally used like a single frame in a stack trace and should only be used if the template system does not provide proper stack traces otherwise.

Attributes

The attributes filename, context_line, and lineno are required.

lineno

The line number of the call.

abs_path

The absolute path to the template on the file system.

filename

The filename as it was passed to the template loader.

context_line

Source code in filename at lineno.

pre_context

A list of source code lines before context_line (in order) – usually

[lineno - 5:lineno].

post_context

A list of source code lines after context_line (in order) – usually

[lineno + 1:lineno + 5].

Examples

{
  "template": {
    "abs_path": "/real/file/name.html",
    "filename": "file/name.html",
    "lineno": 3,
    "pre_context": ["line1", "line2"],
    "context_line": "line3",
    "post_context": ["line4", "line5"]
  }
}