client.py 文件源码

def __init__(self, url, fileOrName,
                 method='GET', postdata=None, headers=None,
                 agent="Twisted client", supportPartial=0):
        self.requestedPartial = 0
        if isinstance(fileOrName, types.StringTypes):
            self.fileName = fileOrName
            self.file = None
            if supportPartial and os.path.exists(self.fileName):
                fileLength = os.path.getsize(self.fileName)
                if fileLength:
                    self.requestedPartial = fileLength
                    if headers == None:
                        headers = {}
                    headers["range"] = "bytes=%d-" % fileLength
        else:
            self.file = fileOrName
        HTTPClientFactory.__init__(self, url, method=method, postdata=postdata, headers=headers, agent=agent)
        self.deferred = defer.Deferred()
        self.waiting = 1