Download Twisted Network Programming Essentials by Abe Fettig PDF

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By Abe Fettig

I purchased this ebook simply because i used to be having difficulty making experience out of the Twisted online documentation. i am relatively a booklet man, besides, and felt i wished "The ebook" for Twisted. while the 1st web page identical of "Hello international" blows up on Python 2.6 due to a few vague deprecation factor, you recognize you're in for genuine difficulties. It will get worse from there. i feel this booklet was once most likely a good name years in the past whilst the Twisted bits and Python bits have been extra in sync. This publication is heavily superseded and in want a large revision.

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2. 2. Accessing a Password-Protected Page Web pages can require authentication. If you're developing an HTTP client application, it's a good idea to be prepared to handle this case, and give the user some way of entering his login name and password. 1. How Do I Do That? If an HTTP request fails with a 401 status code, authentication is required. py in Example 3-3. Example 3-3. 2. py with a URL as the first argument, and it will attempt to download and print the page.

1. py Running the reactor... Current time is 10:33:44 Current time is 10:33:45 Current time is 10:33:46 Current time is 10:33:47 Stopping reactor Reactor stopped. 2. How Does That Work? run( ) to start it. The reactor will keep running (although it hadn't been giving anything to do) until you press Ctrl-C. At that point, the reactor stops, and the program proceeds to the final line of code, which prints out a message informing you that the reactor has been stopped. 1. callLater function to schedule some function calls.

1. How Do I Do That? Create a Protocol object defining your server's behavior. listenTCP. Example 2-7 shows a simple echo server that accepts a client connection and then repeats back all client messages. Example 2-7. 4. py Server running, press ctrl-C to stop. py application from Example 2-6 to connect to the server. It will echo anything you type back to you. py localhost 5001 Connected to server. Press ctrl-C to close connection. hello You said: hello twisted is fun You said: twisted is fun quit Goodbye.

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