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Available Settings

Here's a list of all available Scrapy settings, in alphabetical order, along with their default values and the scope where they apply.

The scope, where available, shows where the setting is being used, if it's tied to any particular component. In that case the module of that component will be shown, typically an extension, middleware or pipeline. It also means that the component must be enabled in order for the setting to have any effect.

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.. setting:: ADAPTORS_DEBUG

ADAPTORS_DEBUG

Default: False

Enable debug mode for adaptors.

See :ref:`topics-adaptors`.

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.. setting:: BOT_NAME

BOT_NAME

Default: scrapybot

The name of the bot implemented by this Scrapy project. This will be used to construct the User-Agent by default, and also for logging.

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.. setting:: BOT_VERSION

BOT_VERSION

Default: 1.0

The version of the bot implemented by this Scrapy project. This will be used to construct the User-Agent by default.

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.. setting:: HTTPCACHE_DIR

HTTPCACHE_DIR

Default: '' (empty string)

The directory to use for storing the (low-level) HTTP cache. If empty the HTTP cache will be disabled.

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.. setting:: HTTPCACHE_EXPIRATION_SECS

HTTPCACHE_EXPIRATION_SECS

Default: 0

Number of seconds to use for HTTP cache expiration. Requests that were cached before this time will be re-downloaded. If zero, cached requests will always expire. Negative numbers means requests will never expire.

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.. setting:: HTTPCACHE_IGNORE_MISSING

HTTPCACHE_IGNORE_MISSING

Default: False

If enabled, requests not found in the cache will be ignored instead of downloaded.

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.. setting:: HTTPCACHE_SECTORIZE

HTTPCACHE_SECTORIZE

Default: True

Whether to split HTTP cache storage in several dirs for performance.

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.. setting:: CLOSEDOMAIN_NOTIFY

CLOSEDOMAIN_NOTIFY

Default: [] Scope: scrapy.contrib.closedomain

A list of emails to notify if the domain has been automatically closed by timeout.

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.. setting:: CLOSEDOMAIN_TIMEOUT

CLOSEDOMAIN_TIMEOUT

Default: 0 Scope: scrapy.contrib.closedomain

A timeout (in secs) for automatically closing a spider. Spiders that remain open for more than this time will be automatically closed. If zero, the automatically closing is disabled.

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.. setting:: CLUSTER_LOGDIR

CLUSTER_LOGDIR

Default: '' (empty string)

The directory to use for cluster logging.

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.. setting:: CLUSTER_MASTER_CACHEFILE

CLUSTER_MASTER_CACHEFILE

Default: ''

The file to use for storing the state of the cluster master, before shotting down. And also used for restoring the state on start up. If not set, state won't be persisted.

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.. setting:: CLUSTER_MASTER_ENABLED

CLUSTER_MASTER_ENABLED

Default: False

A boolean which specifies whether to enabled the cluster master.

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.. setting:: CLUSTER_MASTER_NODES

CLUSTER_MASTER_NODES

Default: {}

A dict which defines the nodes of the cluster. The keys are the node/worker names and the values are the worker URLs.

Example:

CLUSTER_MASTER_NODES = {
    'local': 'localhost:8789',
    'remote': 'someworker.example.com:8789',
}

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.. setting:: CLUSTER_MASTER_POLL_INTERVAL

CLUSTER_MASTER_POLL_INTERVAL

Default: 60

The amount of time (in secs) that the master should wait before polling the workers.

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.. setting:: CLUSTER_MASTER_PORT

CLUSTER_MASTER_PORT

Default: 8790

The port where the cluster master will listen.

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.. setting:: CLUSTER_WORKER_ENABLED

CLUSTER_WORKER_ENABLED

Default: False

A boolean which specifies whether to enabled the cluster master.

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.. setting:: CLUSTER_WORKER_MAXPROC

CLUSTER_WORKER_MAXPROC

Default: 4

The maximum number of process that the cluster worker will be allowed to spawn.

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.. setting:: CLUSTER_WORKER_PORT

CLUSTER_WORKER_PORT

Default: 8789

The port where the cluster worker will listen.

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.. setting:: COMMANDS_MODULE

COMMANDS_MODULE

Default: '' (empty string)

A module to use for looking for custom Scrapy commands. This is used to add custom command for your Scrapy project.

Example:

COMMANDS_MODULE = 'mybot.commands'

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.. setting:: COMMANDS_SETTINGS_MODULE

COMMANDS_SETTINGS_MODULE

Default: '' (empty string)

A module to use for looking for custom Scrapy command settings.

Example:

COMMANDS_SETTINGS_MODULE = 'mybot.conf.commands'

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.. setting:: CONCURRENT_DOMAINS

CONCURRENT_DOMAINS

Default: 8

Maximum number of domains to scrape in parallel.

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.. setting:: CONCURRENT_ITEMS

CONCURRENT_ITEMS

Default: 100

Maximum number of concurrent items (per response) to process in parallel in the Item Processor (also known as the Item Pipeline).

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.. setting:: COOKIES_DEBUG

COOKIES_DEBUG

Default: False

Enable debugging message of Cookies Downloader Middleware.

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.. setting:: DEFAULT_ITEM_CLASS

DEFAULT_ITEM_CLASS

Default: 'scrapy.item.ScrapedItem'

The default class that will be used for instantiating items in the :ref:`the Scrapy shell <topics-shell>`.

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.. setting:: DEFAULT_REQUEST_HEADERS

DEFAULT_REQUEST_HEADERS

Default:

{
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
    'Accept-Language': 'en',
}

The default headers used for Scrapy HTTP Requests. They're populated in the :class:`~scrapy.contrib.downloadermiddleware.defaultheaders.DefaultHeadersMiddleware`.

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.. setting:: DEFAULT_SPIDER

DEFAULT_SPIDER

Default: None

The default spider class that will be instantiated for URLs for which no specific spider is found. This class must have a constructor which receives as only parameter the domain name of the given URL.

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.. setting:: DEPTH_LIMIT

DEPTH_LIMIT

Default: 0

The maximum depth that will be allowed to crawl for any site. If zero, no limit will be imposed.

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.. setting:: DEPTH_STATS

DEPTH_STATS

Default: True

Whether to collect depth stats.

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.. setting:: DOMAIN_SCHEDULER

DOMAIN_SCHEDULER

Default: 'scrapy.contrib.domainsch.FifoDomainScheduler'

The Domain Scheduler to use. The domain scheduler returns the next domain (spider) to scrape.

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.. setting:: DOWNLOADER_DEBUG

DOWNLOADER_DEBUG

Default: False

Whether to enable the Downloader debugging mode.

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.. setting:: DOWNLOADER_MIDDLEWARES

DOWNLOADER_MIDDLEWARES

Default:: {}

A dict containing the downloader middlewares enabled in your project, and their orders. For more info see :ref:`topics-downloader-middleware-setting`.

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.. setting:: DOWNLOADER_MIDDLEWARES_BASE

DOWNLOADER_MIDDLEWARES_BASE

Default:

{
    'scrapy.contrib.downloadermiddleware.robotstxt.RobotsTxtMiddleware': 100,
    'scrapy.contrib.downloadermiddleware.httpauth.HttpAuthMiddleware': 300,
    'scrapy.contrib.downloadermiddleware.useragent.UserAgentMiddleware': 400,
    'scrapy.contrib.downloadermiddleware.retry.RetryMiddleware': 500,
    'scrapy.contrib.downloadermiddleware.defaultheaders.DefaultHeadersMiddleware': 550,
    'scrapy.contrib.downloadermiddleware.redirect.RedirectMiddleware': 600,
    'scrapy.contrib.downloadermiddleware.cookies.CookiesMiddleware': 700,
    'scrapy.contrib.downloadermiddleware.httpcompression.HttpCompressionMiddleware': 800,
    'scrapy.contrib.downloadermiddleware.stats.DownloaderStats': 850,
    'scrapy.contrib.downloadermiddleware.httpcache.HttpCacheMiddleware': 900,
}

A dict containing the downloader middlewares enabled by default in Scrapy. You should never modify this setting in your project, modify :setting:`DOWNLOADER_MIDDLEWARES` instead. For more info see :ref:`topics-downloader-middleware-setting`.

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.. setting:: DOWNLOADER_STATS

DOWNLOADER_STATS

Default: True

Whether to enable downloader stats collection.

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.. setting:: DOWNLOAD_DELAY

DOWNLOAD_DELAY

Default: 0

The amount of time (in secs) that the downloader should wait before downloading consecutive pages from the same spider. This can be used to throttle the crawling speed to avoid hitting servers too hard. Decimal numbers are supported. Example:

DOWNLOAD_DELAY = 0.25    # 250 ms of delay

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.. setting:: DOWNLOAD_TIMEOUT

DOWNLOAD_TIMEOUT

Default: 180

The amount of time (in secs) that the downloader will wait before timing out.

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.. setting:: DUPEFILTER_CLASS

DUPEFILTER_CLASS

Default: 'scrapy.contrib.dupefilter.RequestFingerprintDupeFilter'

The class used to detect and filter duplicate requests.

The default (RequestFingerprintDupeFilter) filters based on request fingerprint (using scrapy.utils.request.request_fingerprint) and grouping per domain.

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.. setting:: ENABLED_SPIDERS_FILE

ENABLED_SPIDERS_FILE

Default: '' (empty string)

The path to a file containing a list of spiders (one domain name per line). Those spiders will be considered enabled by Scrapy, and will be the spiders crawled automatically when running scrapy-ctl.py crawl with no arguments.

If this setting is unset, all spiders to crawl must be passed explicitly in the crawl command.

Example:

'/etc/mybot/enabled_spiders.list'

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.. setting:: EXTENSIONS

EXTENSIONS

Default:

[
    'scrapy.stats.corestats.CoreStats',
    'scrapy.xpath.extension.ResponseLibxml2',
    'scrapy.management.web.WebConsole',
    'scrapy.management.telnet.TelnetConsole',
    'scrapy.contrib.webconsole.scheduler.SchedulerQueue',
    'scrapy.contrib.webconsole.livestats.LiveStats',
    'scrapy.contrib.webconsole.spiderctl.Spiderctl',
    'scrapy.contrib.webconsole.enginestatus.EngineStatus',
    'scrapy.contrib.webconsole.stats.StatsDump',
    'scrapy.contrib.webconsole.spiderstats.SpiderStats',
    'scrapy.contrib.spider.reloader.SpiderReloader',
    'scrapy.contrib.memusage.MemoryUsage',
    'scrapy.contrib.memdebug.MemoryDebugger',
    'scrapy.contrib.closedomain.CloseDomain',
    'scrapy.contrib.debug.StackTraceDump',
    'scrapy.contrib.response.soup.ResponseSoup',
]

The list of available extensions. Keep in mind that some of them need need to be enabled through a setting. By default, this setting contains all stable built-in extensions.

For more information See the :ref:`extensions user guide <topics-extensions>` and the :ref:`list of available extensions <ref-extensions>`.

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.. setting:: GROUPSETTINGS_ENABLED

GROUPSETTINGS_ENABLED

Default: False

Whether to enable group settings where spiders pull their settings from.

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.. setting:: GROUPSETTINGS_MODULE

GROUPSETTINGS_MODULE

Default: '' (empty string)

The module to use for pulling settings from, if the group settings is enabled.

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.. setting:: ITEM_PIPELINES

ITEM_PIPELINES

Default: []

The item pipelines to use (a list of classes).

Example:

ITEM_PIPELINES = [
    'mybot.pipeline.validate.ValidateMyItem',
    'mybot.pipeline.validate.StoreMyItem'
]

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.. setting:: LOG_ENABLED

LOG_ENABLED

Default: True

Enable logging.

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.. setting:: LOG_STDOUT

LOG_STDOUT

Default: False

If enabled logging will be sent to standard output, otherwise standard error will be used.

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.. setting:: LOGFILE

LOGFILE

Default: None

File name to use for logging output. If None, standard input (or error) will be used depending on the value of the LOG_STDOUT setting.

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.. setting:: LOGLEVEL

LOGLEVEL

Default: 'DEBUG'

Minimum level to log. Available levels are: SILENT, CRITICAL, ERROR, WARNING, INFO, DEBUG, TRACE

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.. setting:: MAIL_FROM

MAIL_FROM

Default: 'scrapy@localhost'

Email to use as sender address for sending emails using the :ref:`Scrapy e-mail sending facility <ref-email>`.

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.. setting:: MAIL_HOST

MAIL_HOST

Default: 'localhost'

Host to use for sending emails using the :ref:`Scrapy e-mail sending facility <ref-email>`.

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.. setting:: MEMDEBUG_ENABLED

MEMDEBUG_ENABLED

Default: False

Whether to enable memory debugging.

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.. setting:: MEMDEBUG_NOTIFY

MEMDEBUG_NOTIFY

Default: []

When memory debugging is enabled a memory report will be sent to the specified addresses if this setting is not empty, otherwise the report will be written to the log.

Example:

MEMDEBUG_NOTIFY = ['user@example.com']

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.. setting:: MEMUSAGE_ENABLED

MEMUSAGE_ENABLED

Default: False

Scope: scrapy.contrib.memusage

Whether to enable the memory usage extension that will shutdown the Scrapy process when it exceeds a memory limit, and also notify by email when that happened.

See :ref:`ref-extensions-memusage`.

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.. setting:: MEMUSAGE_LIMIT_MB

MEMUSAGE_LIMIT_MB

Default: 0

Scope: scrapy.contrib.memusage

The maximum amount of memory to allow (in megabytes) before shutting down Scrapy (if MEMUSAGE_ENABLED is True). If zero, no check will be performed.

See :ref:`ref-extensions-memusage`.

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.. setting:: MEMUSAGE_NOTIFY_MAIL

MEMUSAGE_NOTIFY_MAIL

Default: False

Scope: scrapy.contrib.memusage

A list of emails to notify if the memory limit has been reached.

Example:

MEMUSAGE_NOTIFY_MAIL = ['user@example.com']

See :ref:`ref-extensions-memusage`.

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.. setting:: MEMUSAGE_REPORT

MEMUSAGE_REPORT

Default: False

Scope: scrapy.contrib.memusage

Whether to send a memory usage report after each domain has been closed.

See :ref:`ref-extensions-memusage`.

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.. setting:: MEMUSAGE_WARNING_MB

MEMUSAGE_WARNING_MB

Default: 0

Scope: scrapy.contrib.memusage

The maximum amount of memory to allow (in megabytes) before sending a warning email notifying about it. If zero, no warning will be produced.

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.. setting:: MYSQL_CONNECTION_SETTINGS

MYSQL_CONNECTION_SETTINGS

Default: {}

Scope: scrapy.utils.db.mysql_connect

Settings to use for MySQL connections performed through scrapy.utils.db.mysql_connect

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.. setting:: NEWSPIDER_MODULE

NEWSPIDER_MODULE

Default: ''

Module where to create new spiders using the genspider command.

Example:

NEWSPIDER_MODULE = 'mybot.spiders_dev'

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.. setting:: PROJECT_NAME

PROJECT_NAME

Default: Not Defined

The name of the current project. It matches the project module name as created by startproject command, and is only defined by project settings file.

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.. setting:: REDIRECT_MAX_TIMES

REDIRECT_MAX_TIMES

Default: 20

Defines the maximun times a request can be redirected. After this maximun the request's response is returned as is. We used Firefox default value for the same task.

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.. setting:: REDIRECT_MAX_METAREFRESH_DELAY

REDIRECT_MAX_METAREFRESH_DELAY

Default: 100

Some sites use meta-refresh for redirecting to a session expired page, so we restrict automatic redirection to a maximum delay (in seconds)

REDIRECT_PRIORITY_ADJUST

Default: +2

Adjust redirect request priority relative to original request. A negative priority adjust means more priority.

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.. setting:: REQUESTS_QUEUE_SIZE

REQUESTS_PER_DOMAIN

Default: 8

Specifies how many concurrent (ie. simultaneous) requests will be performed per open spider.

REQUESTS_QUEUE_SIZE

Default: 0

Scope: scrapy.contrib.spidermiddleware.limit

If non zero, it will be used as an upper limit for the amount of requests that can be scheduled per domain.

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.. setting:: ROBOTSTXT_OBEY

ROBOTSTXT_OBEY

Default: False

Scope: scrapy.contrib.downloadermiddleware.robotstxt

If enabled, Scrapy will respect robots.txt policies. For more information see :topic:`robotstxt`

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.. setting:: SCHEDULER

SCHEDULER

Default: 'scrapy.core.scheduler.Scheduler'

The scheduler to use for crawling.

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.. setting:: SCHEDULER_ORDER

SCHEDULER_ORDER

Default: 'BFO'

Scope: scrapy.core.scheduler

The order to use for the crawling scheduler. Available orders are:

'BFO': Breadth-first order - typically consumes more memory but reaches most relevant pages earlier.
'DFO': Depth-first order - typically consumes less memory than but takes longer to reach most relevant pages.

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.. setting:: SCHEDULER_MIDDLEWARES

SCHEDULER_MIDDLEWARES

Default:: {}

A dict containing the scheduler middlewares enabled in your project, and their orders.

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.. setting:: SCHEDULER_MIDDLEWARES_BASE

SCHEDULER_MIDDLEWARES_BASE

Default:

[
    'scrapy.contrib.schedulermiddleware.duplicatesfilter.DuplicatesFilterMiddleware',
]

A dict containing the scheduler middlewares enabled by default in Scrapy. You should never modify this setting in your project, modify :setting:`SCHEDULER_MIDDLEWARES` instead.

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.. setting:: SPIDERPROFILER_ENABLED

SPIDERPROFILER_ENABLED

Default: False

Enable the spider profiler. Warning: this could have a big impact in performance.

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.. setting:: SPIDER_MIDDLEWARES

SPIDER_MIDDLEWARES

Default:: {}

A dict containing the spider middlewares enabled in your project, and their orders. For more info see :ref:`topics-spider-middleware-setting`.

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.. setting:: SPIDER_MIDDLEWARES_BASE

SPIDER_MIDDLEWARES_BASE

Default:

{
    'scrapy.contrib.spidermiddleware.httperror.HttpErrorMiddleware': 50,
    'scrapy.contrib.itemsampler.ItemSamplerMiddleware': 100,
    'scrapy.contrib.spidermiddleware.limit.RequestLimitMiddleware': 200,
    'scrapy.contrib.spidermiddleware.restrict.RestrictMiddleware': 300,
    'scrapy.contrib.spidermiddleware.offsite.OffsiteMiddleware': 500,
    'scrapy.contrib.spidermiddleware.referer.RefererMiddleware': 700,
    'scrapy.contrib.spidermiddleware.urllength.UrlLengthMiddleware': 800,
    'scrapy.contrib.spidermiddleware.depth.DepthMiddleware': 900,
}

A dict containing the spider middlewares enabled by default in Scrapy. You should never modify this setting in your project, modify :setting:`SPIDER_MIDDLEWARES` instead. For more info see :ref:`topics-spider-middleware-setting`.

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.. setting:: SPIDER_MODULES

SPIDER_MODULES

Default: []

A list of modules where Scrapy will look for spiders.

Example:

SPIDER_MODULES = ['mybot.spiders_prod', 'mybot.spiders_dev']

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.. setting:: STATS_CLEANUP

STATS_CLEANUP

Default: False

Whether to cleanup (to save memory) the stats for a given domain, when the domain is closed.

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.. setting:: STATS_DEBUG

STATS_DEBUG

Default: False

Enable debugging mode for Scrapy stats. This logs the stats when a domain is closed.

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.. setting:: STATS_ENABLED

STATS_ENABLED

Default: True

Enable stats collection.

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.. setting:: STATSMAILER_RCPTS

STATSMAILER_RCPTS

Default: [] (empty list)

Send Scrapy stats after domains finish scrapy. See :class:`~scrapy.contrib.statsmailer.StatsMailer` for more info.

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.. setting:: TELNETCONSOLE_ENABLED

TELNETCONSOLE_ENABLED

Default: True

Scope: scrapy.management.telnet

A boolean which specifies if the telnet management console will be enabled (provided its extension is also enabled).

System Message: ERROR/3 (<stdin>, line 903)

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.. setting:: TELNETCONSOLE_PORT

TELNETCONSOLE_PORT

Default: 6023

The port to use for the telnet console. If None, a dynamically assigned port is used.

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.. setting:: TEMPLATES_DIR

TEMPLATES_DIR

Default: templates dir inside scrapy module

The directory where to look for template when creating new projects with scrapy-admin.py newproject.

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.. setting:: URLLENGTH_LIMIT

URLLENGTH_LIMIT

Default: 2083

Scope: contrib.spidermiddleware.urllength

The maximum URL length to allow for crawled URLs. For more information about the default value for this setting see: http://www.boutell.com/newfaq/misc/urllength.html

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.. setting:: USER_AGENT

USER_AGENT

Default: "%s/%s" % (BOT_NAME, BOT_VERSION)

The default User-Agent to use when crawling, unless overrided.

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.. setting:: WEBCONSOLE_ENABLED

WEBCONSOLE_ENABLED

Default: True

A boolean which specifies if the web management console will be enabled (provided its extension is also enabled).

System Message: ERROR/3 (<stdin>, line 954)

Unknown directive type "setting".

.. setting:: WEBCONSOLE_LOGFILE

WEBCONSOLE_LOGFILE

Default: None

A file to use for logging HTTP requests made to the web console. If unset web the log is sent to standard scrapy log.

System Message: ERROR/3 (<stdin>, line 964)

Unknown directive type "setting".

.. setting:: WEBCONSOLE_PORT

WEBCONSOLE_PORT

Default: None

The port to use for the web console. If unset, a dynamically assigned port is used.

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21 KiB Raw Blame History

Available Settings

ADAPTORS_DEBUG

BOT_NAME

BOT_VERSION

HTTPCACHE_DIR

HTTPCACHE_EXPIRATION_SECS

HTTPCACHE_IGNORE_MISSING

HTTPCACHE_SECTORIZE

CLOSEDOMAIN_NOTIFY

CLOSEDOMAIN_TIMEOUT

CLUSTER_LOGDIR

CLUSTER_MASTER_CACHEFILE

CLUSTER_MASTER_ENABLED

CLUSTER_MASTER_NODES

CLUSTER_MASTER_POLL_INTERVAL

CLUSTER_MASTER_PORT

CLUSTER_WORKER_ENABLED

CLUSTER_WORKER_MAXPROC

CLUSTER_WORKER_PORT

COMMANDS_MODULE

COMMANDS_SETTINGS_MODULE

CONCURRENT_DOMAINS

CONCURRENT_ITEMS

COOKIES_DEBUG

DEFAULT_ITEM_CLASS

DEFAULT_REQUEST_HEADERS

DEFAULT_SPIDER

DEPTH_LIMIT

DEPTH_STATS

DOMAIN_SCHEDULER

DOWNLOADER_DEBUG

DOWNLOADER_MIDDLEWARES

DOWNLOADER_MIDDLEWARES_BASE

DOWNLOADER_STATS

DOWNLOAD_DELAY

DOWNLOAD_TIMEOUT

DUPEFILTER_CLASS

ENABLED_SPIDERS_FILE

EXTENSIONS

GROUPSETTINGS_ENABLED

GROUPSETTINGS_MODULE

ITEM_PIPELINES

LOG_ENABLED

LOG_STDOUT

LOGFILE

LOGLEVEL

MAIL_FROM

MAIL_HOST

MEMDEBUG_ENABLED

MEMDEBUG_NOTIFY

MEMUSAGE_ENABLED

MEMUSAGE_LIMIT_MB

MEMUSAGE_NOTIFY_MAIL

MEMUSAGE_REPORT

MEMUSAGE_WARNING_MB

MYSQL_CONNECTION_SETTINGS

NEWSPIDER_MODULE

PROJECT_NAME

REDIRECT_MAX_TIMES

REDIRECT_MAX_METAREFRESH_DELAY

REDIRECT_PRIORITY_ADJUST

REQUESTS_PER_DOMAIN

REQUESTS_QUEUE_SIZE

ROBOTSTXT_OBEY

SCHEDULER

SCHEDULER_ORDER

SCHEDULER_MIDDLEWARES

SCHEDULER_MIDDLEWARES_BASE

SPIDERPROFILER_ENABLED

SPIDER_MIDDLEWARES

SPIDER_MIDDLEWARES_BASE

SPIDER_MODULES

STATS_CLEANUP

STATS_DEBUG

STATS_ENABLED

STATSMAILER_RCPTS

TELNETCONSOLE_ENABLED

TELNETCONSOLE_PORT

TEMPLATES_DIR

21 KiB

Raw Blame History