Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/pip/_internal/distributions/base.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 import abc |
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2 |
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3 from pip._internal.utils.typing import MYPY_CHECK_RUNNING |
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4 |
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5 if MYPY_CHECK_RUNNING: |
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6 from typing import Optional |
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7 |
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8 from pip._vendor.pkg_resources import Distribution |
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9 |
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10 from pip._internal.index.package_finder import PackageFinder |
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11 from pip._internal.req import InstallRequirement |
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12 |
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13 |
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14 class AbstractDistribution(metaclass=abc.ABCMeta): |
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15 """A base class for handling installable artifacts. |
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16 |
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17 The requirements for anything installable are as follows: |
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18 |
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19 - we must be able to determine the requirement name |
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20 (or we can't correctly handle the non-upgrade case). |
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21 |
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22 - for packages with setup requirements, we must also be able |
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23 to determine their requirements without installing additional |
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24 packages (for the same reason as run-time dependencies) |
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25 |
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26 - we must be able to create a Distribution object exposing the |
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27 above metadata. |
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28 """ |
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29 def __init__(self, req): |
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30 # type: (InstallRequirement) -> None |
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31 super().__init__() |
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32 self.req = req |
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33 |
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34 @abc.abstractmethod |
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35 def get_pkg_resources_distribution(self): |
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36 # type: () -> Optional[Distribution] |
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37 raise NotImplementedError() |
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38 |
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39 @abc.abstractmethod |
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40 def prepare_distribution_metadata(self, finder, build_isolation): |
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41 # type: (PackageFinder, bool) -> None |
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42 raise NotImplementedError() |