comparison planemo/lib/python3.7/site-packages/pip/_internal/distributions/base.py @ 1:56ad4e20f292 draft

"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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0:d30785e31577 1:56ad4e20f292
1 import abc
2
3 from pip._vendor.six import add_metaclass
4
5
6 @add_metaclass(abc.ABCMeta)
7 class AbstractDistribution(object):
8 """A base class for handling installable artifacts.
9
10 The requirements for anything installable are as follows:
11
12 - we must be able to determine the requirement name
13 (or we can't correctly handle the non-upgrade case).
14
15 - for packages with setup requirements, we must also be able
16 to determine their requirements without installing additional
17 packages (for the same reason as run-time dependencies)
18
19 - we must be able to create a Distribution object exposing the
20 above metadata.
21 """
22
23 def __init__(self, req):
24 super(AbstractDistribution, self).__init__()
25 self.req = req
26
27 @abc.abstractmethod
28 def get_pkg_resources_distribution(self):
29 raise NotImplementedError()
30
31 @abc.abstractmethod
32 def prepare_distribution_metadata(self, finder, build_isolation):
33 raise NotImplementedError()