ERROR: Spider error processing <GET https://www.safaribooksonline.com/> (referer: None)

[daproject85]

2018-11-12 20:26:20 [scrapy.utils.log] INFO: Scrapy 1.5.1 started (bot: safaribooks)
2018-11-12 20:26:20 [scrapy.utils.log] INFO: Versions: lxml 4.2.5.0, libxml2 2.9.8, cssselect 1.0.3, parsel 1.5.1, w3lib 1.19.0, Twisted 16.4.1, Python 3.6.5 (default, Jul  3 2018, 18:38:05) - [GCC 4.2.1 Compatible Apple LLVM 9.1.0 (clang-902.0.39.2)], pyOpenSSL 18.0.0 (OpenSSL 1.1.0i  14 Aug 2018), cryptography 2.4.1, Platform Darwin-18.2.0-x86_64-i386-64bit
2018-11-12 20:26:20 [scrapy.crawler] INFO: Overridden settings: {'BOT_NAME': 'safaribooks', 'DOWNLOAD_DELAY': 0.25, 'NEWSPIDER_MODULE': 'safaribooks.spiders', 'SPIDER_MODULES': ['safaribooks.spiders']}
2018-11-12 20:26:20 [scrapy.middleware] INFO: Enabled extensions:
['scrapy.extensions.corestats.CoreStats',
 'scrapy.extensions.telnet.TelnetConsole',
 'scrapy.extensions.memusage.MemoryUsage',
 'scrapy.extensions.logstats.LogStats']
2018-11-12 20:26:20 [SafariBooks] INFO: Using `/var/folders/f6/7jyf72pj343clct4dwq4fq940000gn/T/tmp24r1td0k` as temporary directory
2018-11-12 20:26:20 [scrapy.middleware] INFO: Enabled downloader middlewares:
['scrapy.downloadermiddlewares.httpauth.HttpAuthMiddleware',
 'scrapy.downloadermiddlewares.downloadtimeout.DownloadTimeoutMiddleware',
 'scrapy.downloadermiddlewares.defaultheaders.DefaultHeadersMiddleware',
 'scrapy.downloadermiddlewares.useragent.UserAgentMiddleware',
 'scrapy.downloadermiddlewares.retry.RetryMiddleware',
 'scrapy.downloadermiddlewares.redirect.MetaRefreshMiddleware',
 'scrapy.downloadermiddlewares.httpcompression.HttpCompressionMiddleware',
 'scrapy.downloadermiddlewares.redirect.RedirectMiddleware',
 'scrapy.downloadermiddlewares.cookies.CookiesMiddleware',
 'scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware',
 'scrapy.downloadermiddlewares.stats.DownloaderStats']
2018-11-12 20:26:20 [scrapy.middleware] INFO: Enabled spider middlewares:
['scrapy.spidermiddlewares.httperror.HttpErrorMiddleware',
 'scrapy.spidermiddlewares.offsite.OffsiteMiddleware',
 'scrapy.spidermiddlewares.referer.RefererMiddleware',
 'scrapy.spidermiddlewares.urllength.UrlLengthMiddleware',
 'scrapy.spidermiddlewares.depth.DepthMiddleware']
2018-11-12 20:26:20 [scrapy.middleware] INFO: Enabled item pipelines:
[]
2018-11-12 20:26:20 [scrapy.core.engine] INFO: Spider opened
2018-11-12 20:26:20 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2018-11-12 20:26:20 [scrapy.extensions.telnet] DEBUG: Telnet console listening on 127.0.0.1:6023
2018-11-12 20:26:25 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://www.safaribooksonline.com/> (referer: None)
2018-11-12 20:26:25 [scrapy.core.scraper] ERROR: Spider error processing <GET https://www.safaribooksonline.com/> (referer: None)
Traceback (most recent call last):
  File "/Users/Rocky/.pyenv/versions/3.6.5/lib/python3.6/site-packages/twisted/internet/defer.py", line 587, in _runCallbacks
    current.result = callback(current.result, *args, **kw)
  File "/Users/Rocky/.pyenv/versions/3.6.5/lib/python3.6/site-packages/safaribooks/spiders/safaribooks.py", line 91, in parse
    cookies = dict(x.strip().split('=') for x in self.cookie.split(';'))
ValueError: dictionary update sequence element #0 has length 1; 2 is required
2018-11-12 20:26:26 [scrapy.core.engine] INFO: Closing spider (finished)
2018-11-12 20:26:26 [SafariBooks] INFO: Did not even got toc, ignore generated file operation.
2018-11-12 20:26:26 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 224,
 'downloader/request_count': 1,
 'downloader/request_method_count/GET': 1,
 'downloader/response_bytes': 11368,
 'downloader/response_count': 1,
 'downloader/response_status_count/200': 1,
 'finish_reason': 'finished',
 'finish_time': datetime.datetime(2018, 11, 13, 4, 26, 26, 84559),
 'log_count/DEBUG': 2,
 'log_count/ERROR': 1,
 'log_count/INFO': 9,
 'memusage/max': 52514816,
 'memusage/startup': 52514816,
 'response_received_count': 1,
 'scheduler/dequeued': 1,
 'scheduler/dequeued/memory': 1,
 'scheduler/enqueued': 1,
 'scheduler/enqueued/memory': 1,
 'spider_exceptions/ValueError': 1,
 'start_time': datetime.datetime(2018, 11, 13, 4, 26, 20, 686228)}
2018-11-12 20:26:26 [scrapy.core.engine] INFO: Spider closed (finished)

it fails. Any ideas? running python 3.6