[Distutils] How to specify dependencies in Python
jim at jimfulton.info
Mon Jan 16 12:06:40 EST 2017
On Mon, Jan 16, 2017 at 11:03 AM, Thomas Güttler <
guettliml at thomas-guettler.de> wrote:
> Am 13.01.2017 um 16:25 schrieb Jim Fulton:
>> On Fri, Jan 13, 2017 at 7:23 AM, Thomas Güttler <
>> guettliml at thomas-guettler.de <mailto:guettliml at thomas-guettler.de>>
>> What is an application for you?
>> Another way to think about this, FWIW, is to distinguish between the
>> "whole system" (for which "Application" is often a
>> useful shorthand), as opposed to components (aka libraries).
>> It's important for components to be flexible, so they're typically very
>> flexible about versions of their dependencies.
>> For whole systems, OTOH, it's important that once a configuration is
>> tested, that the same configuration is used in
>> production, so systems typically pin all of their dependencies, ideally
>> extending to their environments (which is a
>> reason why container technology is attractive).
> Yes, install_requires in setup.py should define flexible dependencies, but
> requirements.txt should define fixed dependencies via fixed version.
> Do you agree with my sentence from above?
Are you speaking of a component/library or whole system?
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