Coverage for /usr/local/lib/python3.7/dist-packages/certifi/core.py : 60%

# -*- coding: utf-8 -*- 

""" 

certifi.py 

~~~~~~~~~~ 

This module returns the installation location of cacert.pem or its contents. 

""" 

import os 

try: 

from importlib.resources import path as get_path, read_text 

_CACERT_CTX = None 

_CACERT_PATH = None 

def where(): 

# This is slightly terrible, but we want to delay extracting the file 

# in cases where we're inside of a zipimport situation until someone 

# actually calls where(), but we don't want to re-extract the file 

# on every call of where(), so we'll do it once then store it in a 

# global variable. 

global _CACERT_CTX 

global _CACERT_PATH 

if _CACERT_PATH is None: 

# This is slightly janky, the importlib.resources API wants you to 

# manage the cleanup of this file, so it doesn't actually return a 

# path, it returns a context manager that will give you the path 

# when you enter it and will do any cleanup when you leave it. In 

# the common case of not needing a temporary file, it will just 

# return the file system location and the __exit__() is a no-op. 

# 

# We also have to hold onto the actual context manager, because 

# it will do the cleanup whenever it gets garbage collected, so 

# we will also store that at the global level as well. 

_CACERT_CTX = get_path("certifi", "cacert.pem") 

_CACERT_PATH = str(_CACERT_CTX.__enter__()) 

return _CACERT_PATH 

except ImportError: 

# This fallback will work for Python versions prior to 3.7 that lack the 

# importlib.resources module but relies on the existing `where` function 

# so won't address issues with environments like PyOxidizer that don't set 

# __file__ on modules. 

def read_text(_module, _path, encoding="ascii"): 

with open(where(), "r", encoding=encoding) as data: 

return data.read() 

# If we don't have importlib.resources, then we will just do the old logic 

# of assuming we're on the filesystem and munge the path directly. 

def where(): 

f = os.path.dirname(__file__) 

return os.path.join(f, "cacert.pem") 

def contents(): 

return read_text("certifi", "cacert.pem", encoding="ascii")