[Python-Dev] PEP 594: Removing dead batteries from the standard library

Glenn Linderman v+python at g.nevcal.com
Tue May 21 19:11:46 EDT 2019


On 5/21/2019 2:00 PM, Nathaniel Smith wrote:
> On Tue, May 21, 2019 at 10:43 AM Glenn Linderman <v+python at g.nevcal.com> wrote:
>> After maintaining my own version of http.server to fix or workaround some of its deficiencies for some years, I discovered bottle.py. It has far more capability, is far better documented, and is just as quick to deploy. While I haven't yet converted all past projects to use bottle.py, it will likely happen in time, unless something even simpler to use is discovered, although I can hardly imagine that happening.
> bottle.py uses http.server for its local development mode (the one you
> see in their quickstart example at the top of their README). Same with
> flask, django, and probably a bunch of other frameworks. It's *very*
> widely used.
>
> -n
>
The source for bottle.py version 0.13-dev has an import for http.client, 
but not http.server. I hadn't tracked down every indirect dependency in 
the bottle.py source code, but it seems that if one uses the "default 
server" for bottle, that it is "wsgiref", imported from 
wsgiref.simple_server, and that in turn does import 
BaseHTTPRequestHandler and HTTPServer from http.server.

It is the higher-level code in http.server that has significant 
deficiencies that have caused me problems over the years... a 
"SimpleHTTPRequestHandler" that is so simple it doesn't do POST, PUT or 
PASTE, a "CGIHTTPRequestHandler" that only implements part of the CGI 
protocol, only CGI support in POST, no support for PUT or PASTE, and no 
support for https, and not much bug fix activity in those areas.

Maybe http.server should be split into the "basic parts" (used by 
bottle.py, and other frameworks), and the "higher-level parts", which 
could then be discarded by this PEP! At this point, though, I'd have to 
agree that the whole should not be discarded. Thanks for making me dig 
deeper.



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