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Re: You gotta love a 2-line python solution

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BartC <bc@freeuk.com>:

> On 02/05/2016 04:39, DFS wrote:
>> 2. urllib.urlretrieve("http://econpy.pythonanywhere.com
>>     /ex/001.html","D:\file.html")
> [...]
>
> It seems Python provides a higher level solution compared with VBS.
> Python presumably also has to do those Opens and Sends, but they are
> hidden away inside urllib.urlretrieve.

Relevant questions include:

 * Is a solution available?

 * Is the solution well thought out?

Python does have a lot of great stuff available, which is nice.
Unfortunately, many of the handy facilities are lacking in the
well-thought-out department.

For example, the urlretrieve() function above blocks. You can't use it
with the asyncio or select modules. You are left with:

   <URL: https://docs.python.org/3/library/asyncio-stream.html#get-http-h
   eaders>

Database facilities are notorious offenders. Also, json.load and
json.loads don't allow you to decode JSON in chunks.

If asyncio breaks through, I expect all blocking stdlib function calls
to be adapted for it over the coming years. I'm not overly fond of the
asyncio programming model, but it does sport two new killer features:

 * any blocking operation can be interrupted

 * events can be multiplexed


Marko

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You gotta love a 2-line python solution DFS <nospam@dfs.com> - 2016-05-01 23:39 -0400
  Re: You gotta love a 2-line python solution Stephen Hansen <me+python@ixokai.io> - 2016-05-01 21:31 -0700
    Re: You gotta love a 2-line python solution DFS <nospam@dfs.com> - 2016-05-02 00:51 -0400
      Re: You gotta love a 2-line python solution Stephen Hansen <me+python@ixokai.io> - 2016-05-01 22:02 -0700
        Re: You gotta love a 2-line python solution DFS <nospam@dfs.com> - 2016-05-02 01:08 -0400
          Re: You gotta love a 2-line python solution Stephen Hansen <me+python@ixokai.io> - 2016-05-01 22:21 -0700
            Re: You gotta love a 2-line python solution Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2016-05-02 15:51 +1000
        Re: You gotta love a 2-line python solution DFS <nospam@dfs.com> - 2016-05-02 01:23 -0400
          Re: You gotta love a 2-line python solution Stephen Hansen <me+python@ixokai.io> - 2016-05-01 22:37 -0700
            Re: You gotta love a 2-line python solution DFS <nospam@dfs.com> - 2016-05-02 02:13 -0400
  Re: You gotta love a 2-line python solution Terry Reedy <tjreedy@udel.edu> - 2016-05-02 02:46 -0400
  Re: You gotta love a 2-line python solution BartC <bc@freeuk.com> - 2016-05-02 10:26 +0100
    Re: You gotta love a 2-line python solution Marko Rauhamaa <marko@pacujo.net> - 2016-05-02 13:12 +0300
      Re: You gotta love a 2-line python solution Steven D'Aprano <steve@pearwood.info> - 2016-05-02 22:05 +1000
    Re: You gotta love a 2-line python solution DFS <nospam@dfs.com> - 2016-05-02 11:15 -0400
      Re: You gotta love a 2-line python solution Larry Martell <larry.martell@gmail.com> - 2016-05-02 11:24 -0400
      Re: You gotta love a 2-line python solution Manolo Martínez <manolo@austrohungaro.com> - 2016-05-02 17:32 +0200
  Re: You gotta love a 2-line python solution jfong@ms4.hinet.net - 2016-05-02 17:45 -0700
    Re: You gotta love a 2-line python solution DFS <nospam@dfs.com> - 2016-05-02 21:12 -0400
      Re: You gotta love a 2-line python solution jfong@ms4.hinet.net - 2016-05-02 20:27 -0700
        Re: You gotta love a 2-line python solution Stephen Hansen <me+python@ixokai.io> - 2016-05-02 20:49 -0700
          Re: You gotta love a 2-line python solution jfong@ms4.hinet.net - 2016-05-02 20:57 -0700
            Re: You gotta love a 2-line python solution Stephen Hansen <me+python@ixokai.io> - 2016-05-03 09:09 -0700
        Re: You gotta love a 2-line python solution DFS <nospam@dfs.com> - 2016-05-02 23:56 -0400
          Re: You gotta love a 2-line python solution Steven D'Aprano <steve@pearwood.info> - 2016-05-04 11:20 +1000
        Re: You gotta love a 2-line python solution Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2016-05-03 08:14 -0400

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