Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/certifi/core.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 # -*- coding: utf-8 -*- |
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2 |
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3 """ |
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4 certifi.py |
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5 ~~~~~~~~~~ |
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6 |
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7 This module returns the installation location of cacert.pem or its contents. |
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8 """ |
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9 import os |
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10 |
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11 try: |
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12 from importlib.resources import path as get_path, read_text |
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13 |
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14 _CACERT_CTX = None |
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15 _CACERT_PATH = None |
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16 |
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17 def where(): |
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18 # This is slightly terrible, but we want to delay extracting the file |
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19 # in cases where we're inside of a zipimport situation until someone |
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20 # actually calls where(), but we don't want to re-extract the file |
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21 # on every call of where(), so we'll do it once then store it in a |
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22 # global variable. |
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23 global _CACERT_CTX |
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24 global _CACERT_PATH |
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25 if _CACERT_PATH is None: |
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26 # This is slightly janky, the importlib.resources API wants you to |
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27 # manage the cleanup of this file, so it doesn't actually return a |
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28 # path, it returns a context manager that will give you the path |
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29 # when you enter it and will do any cleanup when you leave it. In |
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30 # the common case of not needing a temporary file, it will just |
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31 # return the file system location and the __exit__() is a no-op. |
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32 # |
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33 # We also have to hold onto the actual context manager, because |
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34 # it will do the cleanup whenever it gets garbage collected, so |
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35 # we will also store that at the global level as well. |
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36 _CACERT_CTX = get_path("certifi", "cacert.pem") |
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37 _CACERT_PATH = str(_CACERT_CTX.__enter__()) |
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38 |
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39 return _CACERT_PATH |
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40 |
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41 |
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42 except ImportError: |
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43 # This fallback will work for Python versions prior to 3.7 that lack the |
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44 # importlib.resources module but relies on the existing `where` function |
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45 # so won't address issues with environments like PyOxidizer that don't set |
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46 # __file__ on modules. |
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47 def read_text(_module, _path, encoding="ascii"): |
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48 with open(where(), "r", encoding=encoding) as data: |
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49 return data.read() |
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50 |
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51 # If we don't have importlib.resources, then we will just do the old logic |
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52 # of assuming we're on the filesystem and munge the path directly. |
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53 def where(): |
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54 f = os.path.dirname(__file__) |
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55 |
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56 return os.path.join(f, "cacert.pem") |
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57 |
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58 |
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59 def contents(): |
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60 return read_text("certifi", "cacert.pem", encoding="ascii") |