dualfroz
a286ef460b
render_to_log_kwargs() and render_to_log_args_and_kwargs() build the extra kwarg straight out of whatever is left in the event dict once the event, positional_args, and the exc_info/stack_info/stacklevel trio have been extracted. If a remaining key happens to share a name with an attribute that logging.LogRecord already carries (filename, module, process, message, ...), logging.Logger.makeRecord() rejects the whole call with a raw KeyError, crashing a documented, non-ProcessorFormatter configuration on an entirely plausible business field name. structlog.stdlib.ExtraAdder already filters LogRecord's own attribute names out of the event dict when merging a record's extra fields in the other direction. Apply the same filtering here so a colliding key is dropped from extra instead of reaching logging.Logger.makeRecord() and crashing it. Fixes #486.