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Let crawler check url is reachable. #51

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Let crawler check url is reachable. #51

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13 changes: 12 additions & 1 deletion libearth/crawler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
import collections
import logging
import sys
from contextlib import closing

try:
import urllib.request as urllib2
Expand All @@ -24,7 +25,17 @@
from .version import VERSION


__all__ = 'CrawlError', 'CrawlResult', 'crawl', 'get_feed'
__all__ = ('CrawlError', 'CrawlResult', 'check_reachable_url', 'crawl',
'get_feed')


def check_reachable_url(url):
try:
with closing(open_url(url)) as fp:
fp.read()
return True
except:
return False


def open_url(url):
Expand Down