[Distutils] Proposal: "Install and save"

[Alex Grönholm]

23.07.2016, 17:04, Thomas Kluyver kirjoitti:
> On Sat, Jul 23, 2016, at 02:32 PM, Alex Grönholm wrote:
>> I'm -1 on this because requirements.txt is not really the standard way
>> to list dependencies.
>> In the Python world, setup.py is the equivalent of Node's package.json.
>> But as it is
>> Python code, it cannot so easily be programmatically modified.
> Packaging based on declarative metadata:
> http://flit.readthedocs.io/en/latest/
> </blowing_own_trumpet>
>
> We have a bit of a divide. Specifying dependencies in setup.py (or
> flit.ini, or upcoming pyproject.toml) is the standard for library and
> tool packages that are intended to be published on PyPI and installed
> with pip. requirements.txt is generally used for applications which will
> be distributed or deployed by other means.
>
> As I understand it, in the Javascript world package.json is used in both
> cases. Is that something Python should try to emulate? Is it hard to
> achieve given the limitations of setup.py that you pointed out?
This topic has been beaten to death. There is no way to cram the 
complexities of C extension compilation setup into purely declarative 
metadata. Distutils2 tried and failed. Just look at the setup.py files 
of some popular projects and imagine all that logic expressed in 
declarative metadata.
> Thomas
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