Python获取远程文件大小的函数代码分享
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2022-06-07 08:35:34
复制代码 代码如下:def getremotefilesize(url, proxy=none): """ 通过content-leng...
复制代码 代码如下:
def getremotefilesize(url, proxy=none):
""" 通过content-length头获取远程文件大小
url - 目标文件url
proxy - 代理 """
opener = urllib2.build_opener()
if proxy:
if url.lower().startswith('https://'):
opener.add_handler(urllib2.proxyhandler({'https' : proxy}))
else:
opener.add_handler(urllib2.proxyhandler({'http' : proxy}))
try:
request = urllib2.request(url)
request.get_method = lambda: 'head'
response = opener.open(request)
response.read()
except exception, e: # 远程文件不存在
return 0
else:
filesize = dict(response.headers).get('content-length', 0)
return int(filesize)