On Dec 5, 2017 08:42, "Dustin Ingram" <dustin.ing...@gmail.com> wrote:
Provides-Extra (optional, multiple use) ::::::::::::::::::::::::::::::::::::::: A string containing the name of an optional feature. Must be a valid Python identifier. May be used to make a dependency conditional on whether the optional feature has been requested. This introduction of this field allows packge installation tools (such as ``pip``) to determine which extras are provided by a given package, and so that package publication tools (such as ``twine``) can check for issues with environment markers which use extras. I haven't followed this so sorry if this is an annoying comment, but having read this description I still don't really understand what Provides-Extra is doing. Don't packages already include extra information? What problem motivated this? -n
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