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How to find the installed pandas version
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How to pass a user defined argument in scrapy spider
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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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How to capture stdout output from a Python function call?
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– martineau
May 16 '13 at 0:43
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Purpose of Python's __repr__
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answered Dec 31 '09 at 6:12
lazy1lazy1
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efficient circular buffer?
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206
I would use collections.deque with a maxlen arg
>>> import collections
>>> d ...
Bidirectional 1 to 1 Dictionary in C#
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edited Nov 6 '08 at 13:08
answered Nov 6 '08 at 12:43
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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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Difference between a theta join, equijoin and natural join
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edited Oct 6 '19 at 4:35
philipxy
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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 ...