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import json
import datetime
import decimal
from twisted.internet import defer
from scrapy.http import Request, Response
from scrapy.item import BaseItem
class ScrapyJSONEncoder(json.JSONEncoder):
DATE_FORMAT = "%Y-%m-%d"
TIME_FORMAT = "%H:%M:%S"
def default(self, o):
if isinstance(o, set):
return list(o)
elif isinstance(o, datetime.datetime):
return o.strftime("%s %s" % (self.DATE_FORMAT, self.TIME_FORMAT))
elif isinstance(o, datetime.date):
return o.strftime(self.DATE_FORMAT)
elif isinstance(o, datetime.time):
return o.strftime(self.TIME_FORMAT)
elif isinstance(o, decimal.Decimal):
return str(o)
elif isinstance(o, defer.Deferred):
return str(o)
elif isinstance(o, BaseItem):
return dict(o)
elif isinstance(o, Request):
return "<%s %s %s>" % (type(o).__name__, o.method, o.url)
elif isinstance(o, Response):
return "<%s %s %s>" % (type(o).__name__, o.status, o.url)
else:
return super(ScrapyJSONEncoder, self).default(o)
class ScrapyJSONDecoder(json.JSONDecoder):
pass
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