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dp.py
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dp.py
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#!encoding=utf-8
import json
from gevent import monkey, lock
import gevent
import time, requests
import os, sys
import re
import pandas as pd
monkey.patch_all()
#设置线程数, 推荐10个线程
sem = lock.Semaphore(10)
l = lock.RLock()
def my_download(url, file_name):
sem.acquire()
try:
r = requests.get(url, stream = True)
with open(file_name, 'wb') as f:
f.write(r.content)
#os.system('wget %s -O %s -q'%(url, file_name))
except Exception as e:
t = time.time() - t0
print t
print("download error:", e)
else:
t = time.time() - t0
print t
print("success downloaded:%s"%(file_name))
l.acquire()
l.release()
sem.release()
data = pd.read_csv('download_info.csv')
data['name'] = data['rd_name'] + '-' + data['xls_name']
names, urls = list(data['name']), list(data['xls_url'])
gls = []
t0 = time.time()
for i, url in enumerate(urls):
file_path = 'xls/' + '{:0>3d}'.format(i) + '_' + names[i] + '.xls'
print url, names[i]
g = gevent.spawn(my_download, url, file_path)
gls.append(g)
gevent.joinall(gls)