The aifc Module

The aifc module reads and writes AIFF and AIFC audio files (as used on SGI and Macintosh computers). Example 9-4 shows how it's used.

Example 9-4. Using the aifc Module

File: SimpleAsyncHTTP.py import asyncore import string, socket import StringIO import mimetools, urlparse class AsyncHTTP(asyncore.dispatcher_with_send): # HTTP requestor def _ _init_ _(self, uri, consumer): asyncore.dispatcher_with_send._ _init_ _(self) self.uri = uri self.consumer = consumer # turn the uri into a valid request scheme, host, path, params, query, fragment = urlparse.urlparse(uri) assert scheme == "http", "only supports HTTP requests" try: host, port = string.split(host, ":", 1) port = int(port) except (TypeError, ValueError): port = 80 # default port if not path: path = "/" if params: path = path + ";" + params if query: path = path + "?" + query self.request = "GET %s HTTP/1.0 Host: %s " % (path, host) self.host = host self.port = port self.status = None self.header = None self.data = "" # get things going! self.create_socket(socket.AF_INET, socket.SOCK_STREAM) self.connect((host, port)) def handle_connect(self): # connection succeeded self.send(self.request) def handle_expt(self): # connection failed; notify consumer (status is None) self.close() try: http_header = self.consumer.http_header except AttributeError: pass else: http_header(self) def handle_read(self): data = self.recv(2048) if not self.header: self.data = self.data + data try: i = string.index(self.data, " ") except ValueError: return # continue else: # parse header fp = StringIO.StringIO(self.data[:i+4]) # status line is "HTTP/version status message" status = fp.readline() self.status = string.split(status, " ", 2) # followed by a rfc822-style message header self.header = mimetools.Message(fp) # followed by a newline, and the payload (if any) data = self.data[i+4:] self.data = "" # notify consumer (status is non-zero) try: http_header = self.consumer.http_header except AttributeError: pass else: http_header(self) if not self.connected: return # channel was closed by consumer self.consumer.feed(data) def handle_close(self): self.consumer.close() self.close()