pcurl 学习 http文件下载及写入空设备文件实例
import pycurl
import sys
import os
import random
import string
import time
class Transaction(object):
def __init__(self):
pass
def run(self):
c = pycurl.Curl()
f=open(os.devnull, ‘wb‘)
c.setopt(c.URL,‘http://localhost/GeeHP5M1080P.mp4‘)
c.setopt(c.WRITEDATA,f) #write download content to dev null
c.setopt(c.HTTPHEADER,["User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0)",
"Accept: */*", "Range: bytes=0-", "GetContentFeatures.DLNA.ORG: 1", "Pragma: getIfoFileURI.dlna.org", "Accept-Language: zh-CN", "Accept-Encoding: gzip, deflate", "DNT: 1", "Host: {Host}"])
#c.setopt(c.BUFFERSIZE,655360)
c.setopt(c.LOW_SPEED_LIMIT,655360)
#c.setopt(c.MAX_RECV_SPEED_LARGE, 10485760)
#c.setopt(c.PROGRESSFUNCTION,self.progress)
c.setopt(c.FOLLOWLOCATION,1)
c.setopt(c.MAXREDIRS,5)
c.setopt(c.VERBOSE,1)
c.setopt(c.NOPROGRESS, 0)
c.perform()
http_code=c.getinfo(c.HTTP_CODE)
http_conn_time=c.getinfo(c.CONNECT_TIME)
http_pre_tran=c.getinfo(c.PRETRANSFER_TIME)
http_start_tran=c.getinfo(c.STARTTRANSFER_TIME)
http_total_time=c.getinfo(c.TOTAL_TIME)
http_size=c.getinfo(c.SIZE_DOWNLOAD)
http_rate=c.getinfo(c.SPEED_DOWNLOAD)
#print "http_code: %d"%(http_code)
#print "http_conn_time: %d"%(http_conn_time)
#print "http_pre_tran: %f"%(http_pre_tran)
#print "http_start_tran: %f"%(http_start_tran)
#print "http_total_time: %f"%(http_total_time)
#print "http_size: %f"%(http_size)
#print "http_rate: %f"%(http_rate)
if __name__ == ‘__main__‘:
trans = Transaction()
trans.run()
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