[Distutils] [Catalog-sig] Prototype setuptools-specific PyPI index.

[Jim Fulton]

On Jul 22, 2007, at 1:03 PM, Martin v. Löwis wrote:

> Jim Fulton schrieb:
>> On Jul 22, 2007, at 12:24 PM, Martin v. Löwis wrote:
>>>>> If people do misspell a package name when invoking easy_install,
>>>>> they get the feature that you consider of no value.
>>>>
>>>> That is not correct. Not all packages are in PyPI.  Using a  
>>>> package that
>>>> isn't in PyPI will trigger a fetch of that page.
>>>
>>> I don't understand. What page is fetched if the package is not in  
>>> PyPI?
>>
>> We have lots of packages that aren't in PyPI.  Some of them aren't  
>> ready
>> for PyPI or are not of general interest. Some are proprietary.
>
> Ah, ok. So I stand to my original statement (the one you classified
> as incorrect): *If* I do misspell a package name, *then* setuptools
> will correct the spelling if the index page is available.

Your full original statement was:

On Jul 21, 2007, at 3:08 PM, Martin v. Löwis wrote:
> IIUC, it won't slow down setuptools, as setuptools looks at it only
> if it cannot find the real package page due to a misspelling. So
> as long as everything is spelled correctly, it should not provide
> any slowdown.
>
> If people do misspell a package name when invoking easy_install,
> they get the feature that you consider of no value.

I was referring to the part about not slowing things down when people  
didn't misspell.  But it looks like I was mistaken. It was my  
understanding that setuptools always checked index/ when it couldn't  
find index/package_name/, but as Phillip pointed out, if it finds a  
package via find links, it won't look at index/.  Basic tests seem to  
confirm this.

>>> Would people prefer if the index
>>> was always correct (and perhaps somewhat slow), or would they prefer
>>> instead that it is super-efficient (and somewhat out-of-date)?
>>
>> Where somewhat out of date could be a matter of seconds.
>
> And where somewhat slower could be "practically not noticable".

I wasn't arguing about speed.  I agree that when PyPI is working  
well, the difference between the speed of the dynamic page and the  
speed of a static page wouldn't be noticeable.

Jim

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