You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
56 lines
1.4 KiB
56 lines
1.4 KiB
"""
|
|
Scrapy core exceptions
|
|
|
|
These exceptions are documented in docs/topics/exceptions.rst. Please don't add
|
|
new exceptions here without documenting them there.
|
|
"""
|
|
|
|
# Internal
|
|
|
|
class NotConfigured(Exception):
|
|
"""Indicates a missing configuration situation"""
|
|
pass
|
|
|
|
# HTTP and crawling
|
|
|
|
class IgnoreRequest(Exception):
|
|
"""Indicates a decision was made not to process a request"""
|
|
|
|
class DontCloseSpider(Exception):
|
|
"""Request the spider not to be closed yet"""
|
|
pass
|
|
|
|
class CloseSpider(Exception):
|
|
"""Raise this from callbacks to request the spider to be closed"""
|
|
|
|
def __init__(self, reason='cancelled'):
|
|
super(CloseSpider, self).__init__()
|
|
self.reason = reason
|
|
|
|
# Items
|
|
|
|
class DropItem(Exception):
|
|
"""Drop item from the item pipeline"""
|
|
pass
|
|
|
|
class NotSupported(Exception):
|
|
"""Indicates a feature or method is not supported"""
|
|
pass
|
|
|
|
# Commands
|
|
|
|
class UsageError(Exception):
|
|
"""To indicate a command-line usage error"""
|
|
def __init__(self, *a, **kw):
|
|
self.print_help = kw.pop('print_help', True)
|
|
super(UsageError, self).__init__(*a, **kw)
|
|
|
|
class ScrapyDeprecationWarning(Warning):
|
|
"""Warning category for deprecated features, since the default
|
|
DeprecationWarning is silenced on Python 2.7+
|
|
"""
|
|
pass
|
|
|
|
class ContractFail(AssertionError):
|
|
"""Error raised in case of a failing contract"""
|
|
pass
|