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comparison planemo/lib/python3.7/site-packages/certifi/core.py @ 0:d30785e31577 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:18:57 -0400
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-1:000000000000 0:d30785e31577
1 # -*- coding: utf-8 -*-
2
3 """
4 certifi.py
5 ~~~~~~~~~~
6
7 This module returns the installation location of cacert.pem or its contents.
8 """
9 import os
10
11 try:
12 from importlib.resources import path as get_path, read_text
13
14 _CACERT_CTX = None
15 _CACERT_PATH = None
16
17 def where():
18 # This is slightly terrible, but we want to delay extracting the file
19 # in cases where we're inside of a zipimport situation until someone
20 # actually calls where(), but we don't want to re-extract the file
21 # on every call of where(), so we'll do it once then store it in a
22 # global variable.
23 global _CACERT_CTX
24 global _CACERT_PATH
25 if _CACERT_PATH is None:
26 # This is slightly janky, the importlib.resources API wants you to
27 # manage the cleanup of this file, so it doesn't actually return a
28 # path, it returns a context manager that will give you the path
29 # when you enter it and will do any cleanup when you leave it. In
30 # the common case of not needing a temporary file, it will just
31 # return the file system location and the __exit__() is a no-op.
32 #
33 # We also have to hold onto the actual context manager, because
34 # it will do the cleanup whenever it gets garbage collected, so
35 # we will also store that at the global level as well.
36 _CACERT_CTX = get_path("certifi", "cacert.pem")
37 _CACERT_PATH = str(_CACERT_CTX.__enter__())
38
39 return _CACERT_PATH
40
41
42 except ImportError:
43 # This fallback will work for Python versions prior to 3.7 that lack the
44 # importlib.resources module but relies on the existing `where` function
45 # so won't address issues with environments like PyOxidizer that don't set
46 # __file__ on modules.
47 def read_text(_module, _path, encoding="ascii"):
48 with open(where(), "r", encoding=encoding) as data:
49 return data.read()
50
51 # If we don't have importlib.resources, then we will just do the old logic
52 # of assuming we're on the filesystem and munge the path directly.
53 def where():
54 f = os.path.dirname(__file__)
55
56 return os.path.join(f, "cacert.pem")
57
58
59 def contents():
60 return read_text("certifi", "cacert.pem", encoding="ascii")