wsgi_errors_stream

Find the most appropriate error stream for the application. If a request is active, log to "wsgi.errors", otherwise use "sys.stderr". If you configure your own :class:logging.StreamHandler, you may want to use this for the stream. If you are using file or dict configuration and can't import this directly, you can refer to it as ext://flask.logging.wsgi_errors_stream.

def wsgi_errors_stream() - > t.TextIO

Find the most appropriate error stream for the application. If a request is active, log to wsgi.errors, otherwise use sys.stderr. If you configure your own logging.StreamHandler, you may want to use this for the stream. If you are using file or dict configuration and can't import this directly, you can refer to it as ext://flask.logging.wsgi_errors_stream.

Returns

Type	Description
t.TextIO	The appropriate error stream, either wsgi.errors from the current request's environment or sys.stderr.