Re: Python: Conditional dependencies (environment markers)

Thomas Leonard <[email protected]> Thu, 9 Mar 2017 18:12:22 +0000

Newsgroups	gmane.comp.file-systems.zero-install.devel
Message-ID	<CAG4opy-0Z73AP5c5q_TEy5SOZBksgUc_8CnFOvFF8KfL3X=FVA@mail.gmail.com>

On 9 March 2017 at 14:08, Tim Diels <[email protected]> wrote:
> When specifying multiple constraints, are they combined via intersection?
>
> E.g. is the following equivalent to 3.3..!4?
>
>       <requires interface='dep2.xml' importance='required'>
>         <version not-before='3' before='4' />  <!-- dep2==3.* -->
>         <version not-before='3.3' before='4' />  <!-- dep2>=3.3,<4 -->
>       </requires>

Yes. Use

  <requires version='3..!4 | 3.3..!4'>

if you want to allow either case (this is the same as '3..!4' in this example).


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