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datetime.datetime.strptime([DATE IN STRING], '%Y-%m-%d %H:%M:%S').strftime('%s')
string time to epoch time(datetime.datetime.today() - datetime.timedelta(days=[# of DAYS])).strftime("%Y%m%d000000")
python-get-datetime-for-3-years-ago-todayfloat(format(num, '.2f'))
defaultdict(list)
, key는 (str, str), value는 list of (str, int)의 경우
cPickle.PicklingError: Can't pickle <type 'function'>: attribute lookup __builtin__.function failed
python -m cProfile some_multiprocessing.py
timeit
exampleproxy 설정을 통해 해결 cf. scrapy-not-scraping-https@stackoverflow
- localhost: ssh_exchange_identification: Connection closed by remote host
- scrapy tcp connection timed out 110 connection timed out
- scrapy scrapy.core.downloader.handlers.http11.TunnelError: Could not open CONNECT tunnel
http_proxy=x.y.z:port https_proxy=x.y.z:port conda install matplotlib
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