Mercurial > repos > guerler > springsuite

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

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