Search bar offers the following options:
+foo bar -baz
foo*
+qname:twisted.mail.* +search
Possible fields: 'name', 'qname' (fully qualified name), 'docstring', and 'kind'. Last two fields are only applicable if "search in docstrings" is enabled.
foo~1
Results provided by Lunr.js
_InvalidOutput
exceptions
CloseSpider
ContractFail
DontCloseSpider
DropItem
IgnoreRequest
NotConfigured
NotSupported
ScrapyDeprecationWarning
StopDownload
UsageError
scrapy.exceptions._InvalidOutput
scrapy
class _InvalidOutput(TypeError): (source)
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Indicates an invalid value has been returned by a middleware's processing method. Internal and undocumented, it should not be raised or caught by user code.