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How to pass a user defined argument in scrapy spider
...s):
self.start_urls = [f'http://www.example.com/{category}'] # py36
super().__init__(**kwargs) # python3
def parse(self, response)
self.log(self.domain) # system
Taken from the Scrapy doc: http://doc.scrapy.org/en/latest/topics/spiders.html#spider-arguments
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Can't pickle when using multiprocessing Pool.map()
...is Fabre♦
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answered Nov 29 '09 at 22:16
Alex MartelliAlex Martelli
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How do I get the opposite (negation) of a Boolean in Python?
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edited Aug 11 '11 at 18:56
Mike Graham
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How to capture stdout output from a Python function call?
... _stringio member.
– martineau
May 16 '13 at 0:43
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efficient circular buffer?
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206
I would use collections.deque with a maxlen arg
>>> import collections
>>> d ...
How to overload __init__ method based on argument type?
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edited Sep 26 '08 at 20:42
answered Sep 26 '08 at 20:30
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Shared-memory objects in multiprocessing
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answered May 23 '12 at 16:42
Francis AvilaFrancis Avila
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Shards and replicas in Elasticsearch
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69
Awesome explanation, thanks for taking your time to put it together! :)
– LuckyLuke
Mar 29 '13 at 17...
Python: Is it bad form to raise exceptions within __init__?
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Raising exceptions within __init__() is absolutely fine. There's no other good way to indicate ...