当我运行这个 python 代码时,出现了一些线程问题。我在互联网上搜索,但没有找到答案。
import urllib2
from time import time
import gevent
import numpy as np
tmp = np.loadtxt('data.txt', dtype=str)
visit_list=tmp[:20]
result_list =[]
def visitUrl(u):
print 'start %s' %u
begin = time()
data = urllib2.urlopen(u).read()
print len(data)
print 'end-------- %s' %u
end = time()
print ('%s ::begin=%s ::end= %s::end-begin= %s' %(u, begin,end, end-begin))
for i in range(3):
reqs = []
begin = time()
for u in visit_list:
start = time()
reqs.append(gevent.spawn(visitUrl, u))
stop = time()
print ('%s $$$ %s' %(u, stop-start))
#reqs = [gevent.spawn(visitUrl, u) for u in visit_list]
gevent.joinall(reqs)
end = time()
print 'ciclie %s=%s' %(i, end - begin)
result_list.append(end-begin)
问题:
Exception KeyError: KeyError(4475468392,) in <module 'threading' from '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.pyc'> ignored