is being created (e.g. 2020-03-28T14-45-08.237134) • %(batch_id)d - gets replaced by the 1-based sequence number of the batch. Use printf-style string formatting to alter the number format. For example 4126) • scrapy.utils.python.MutableChain.__iter__ now returns self, allowing it to be used as a sequence (issue 4153) Bug fixes • The crawl command now also exits with exit code 1 when an exception happens

the feed is being created (e.g. 2020-03-28T14-45-08.237134) • %(batch_id)d - gets replaced by the sequence number of the batch. Use printf-style string formatting to alter the number format. For example 4126) • scrapy.utils.python.MutableChain.__iter__ now returns self, allowing it to be used as a sequence (issue 4153) Bug fixes • The crawl command now also exits with exit code 1 when an exception happens

being created (e.g. 2020-03-28T14-45-08. 237134) • %(batch_id)d - gets replaced by the 1-based sequence number of the batch. 100 Chapter 3. Basic concepts Scrapy Documentation, Release 2.6.3 Use printf-style 2.6.3 • scrapy.utils.python.MutableChain.__iter__ now returns self, allowing it to be used as a sequence (issue 4153) Bug fixes • The crawl command now also exits with exit code 1 when an exception

being created (e.g. 2020-03-28T14-45-08. 237134) • %(batch_id)d - gets replaced by the 1-based sequence number of the batch. Use printf-style string formatting to alter the number format. For example 4126) • scrapy.utils.python.MutableChain.__iter__ now returns self, allowing it to be used as a sequence (issue 4153) Bug fixes • The crawl command now also exits with exit code 1 when an exception

being created (e.g. 2020-03-28T14-45-08. 237134) • %(batch_id)d - gets replaced by the 1-based sequence number of the batch. Use printf-style string formatting to alter the number format. For example 10.1 • scrapy.utils.python.MutableChain.__iter__ now returns self, allowing it to be used as a sequence (issue 4153) Bug fixes • The crawl command now also exits with exit code 1 when an exception

being created (e.g. 2020-03-28T14-45-08. 237134) • %(batch_id)d - gets replaced by the 1-based sequence number of the batch. Use printf-style string formatting to alter the number format. For example 4126) • scrapy.utils.python.MutableChain.__iter__ now returns self, allowing it to be used as a sequence (issue 4153) Bug fixes • The crawl command now also exits with exit code 1 when an exception

being created (e.g. 2020-03-28T14-45-08. 237134) • %(batch_id)d - gets replaced by the 1-based sequence number of the batch. Use printf-style string formatting to alter the number format. For example 4126) • scrapy.utils.python.MutableChain.__iter__ now returns self, allowing it to be used as a sequence (issue 4153) Bug fixes • The crawl command now also exits with exit code 1 when an exception

the feed is being created (e.g. 2020-03-28T14-45-08.237134) %(batch_id)d - gets replaced by the sequence number of the batch. Use printf-style string formatting [https://docs.python.org/3/library/stdtypes 4126]) scrapy.utils.python.MutableChain.__iter__ now returns self, allowing it to be used as a sequence [https://lgtm.com/rules/4850080/] (issue 4153 [https://github.com/scrapy/scrapy/issues/4153]) Bug

being created (e.g. 2020-03-28T14-45-08. 237134) • %(batch_id)d - gets replaced by the 1-based sequence number of the batch. Use printf-style string formatting to alter the number format. For example 2.8.0 • scrapy.utils.python.MutableChain.__iter__ now returns self, allowing it to be used as a sequence (issue 4153) Bug fixes • The crawl command now also exits with exit code 1 when an exception

is being created (e.g. 2020-03-28T14-45-08.237134) %(batch_id)d - gets replaced by the 1-based sequence number of the batch. Use printf-style string formatting [https://docs.python.org/3/library/stdtypes 4126]) scrapy.utils.python.MutableChain.__iter__ now returns self, allowing it to be used as a sequence [https://lgtm.com/rules/4850080/] (issue 4153 [https://github.com/scrapy/scrapy/issues/4153]) Bug