[Distutils] Choice of dependencies?

John J Lee jjl at pobox.com
Sat Dec 3 21:53:10 CET 2005

Is it possible for a package to depend on one of several packages, with
the user having the option to pick?  For example, my package P might
depend on package A, plus either package B or package C.

I know I could (ab)use extras_require, but in my case this is a real
dependency rather than an optional extra.  The other option I have is to
just pick one of the dependencies (B or C in my example above), and
thereby force people to install it even though it's not strictly required.
Neither option seems particularly attractive.


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