[Python-Dev] Fwd: PEP 426 is now the draft spec for distribution metadata 2.0

M.-A. Lemburg mal at egenix.com
Tue Feb 19 22:34:34 CET 2013

On 19.02.2013 14:40, Nick Coghlan wrote:
> On Tue, Feb 19, 2013 at 11:23 PM, M.-A. Lemburg <mal at egenix.com> wrote:
>> * PEP 426 doesn't include any mention of the egg distribution format,
>>   even though it's the most popular distribution format at the moment.
>>   It should at least include the location of the metadata file
>>   in eggs (EGG-INFO/PKG-INFO) and egg installations
>>   (<eggdir>/EGG-INFO/PKG-INFO).
> "Other tools involved in Python distribution may also use this format."
> The egg format has never been, and never will be, officially endorsed
> by python-dev. The wheel format is the standard format for binary
> distribution, and PEP 376 defines the standard location for metadata
> on installed distributions.

Oh, come on, Nick, that's just silly. setuptools was included in stdlib
for a short while, so the above is simply wrong. Eggs are the most
widely used binary distribution format for Python package on PyPI:

# wc *files.csv
  25585   25598 1431013 2013-02-19-egg-files.csv
   4619    4640  236694 2013-02-19-exe-files.csv
    254     255   13402 2013-02-19-msi-files.csv
 104691  104853 5251962 2013-02-19-tar-gz-files.csv
     24      24    1221 2013-02-19-whl-files.csv
  17937   18022  905913 2013-02-19-zip-files.csv
 153110  153392 7840205 total

(based on todays PyPI stats)

It doesn't really help ignoring realities... and I'm saying
that as one of the core devs who got setuptools kicked out of
the stdlib again.

Marc-Andre Lemburg

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