Pip: एसएसएल: CERTIFICATE_VERIFY_FAILED पायथन 3.6.0 के साथ

• पिप संस्करण: 9.0.1
• पायथन संस्करण: 3.6.0
• ऑपरेटिंग सिस्टम: मैकोज़ सिएरा

विवरण:

जब मैं pip install -U channels चलाता हूं तो मुझे pypi.python.org के लिए प्रमाणपत्र त्रुटि मिल रही है। मुझे नहीं पता कि समस्या pip या Python 3.6.0 या किसी अन्य चीज़ से संबंधित है या नहीं। मैंने निम्नलिखित सुझावों का प्रयास किया है लेकिन उनमें से किसी ने भी काम नहीं किया है।

pip --trusted-host pypi.python.org install -U channels

export PIP_CERT=/Users/user/Desktop/certificate_which_i_obtained_from_pypi_dot_python_dot_org.crt
pip install -U channels

निम्नलिखित cacert.pem curl का प्रमाणपत्र है।
pip --cert /Users/user/cacert.pem install -U channels

मुझे यह भी संदेह है कि इस मुद्दे का पायथन 3.6.0 के साथ कुछ लेना-देना हो सकता है। क्योंकि निम्नलिखित आउटपुट पर विचार करें:

user<strong i="25">@host</strong>:~$ python
Python 3.6.0 (v3.6.0:41df79263a11, Dec 22 2016, 17:23:13) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import ssl
>>> context = ssl.create_default_context()
>>> context.cert_store_stats()
{'x509': 0, 'crl': 0, 'x509_ca': 0}
>>> context.get_ca_certs()
[]
>>> 

मैंने क्या चलाया है:

(virtualenv) user<strong i="29">@host</strong>:~/Documents/virtualenv$ pip install -U channels
Collecting channels
  Using cached channels-0.17.3-py2.py3-none-any.whl
Collecting asgiref>=0.13 (from channels)
  Using cached asgiref-1.0.0-py2.py3-none-any.whl
Collecting daphne>=0.14.1 (from channels)
  Using cached daphne-0.15.0-py2.py3-none-any.whl
Requirement already up-to-date: Django>=1.8 in ./lib/python3.6/site-packages (from channels)
Collecting six (from asgiref>=0.13->channels)
  Using cached six-1.10.0-py2.py3-none-any.whl
Collecting twisted>=16.0 (from daphne>=0.14.1->channels)
  Using cached Twisted-16.6.0.tar.bz2
    Complete output from command python setup.py egg_info:
    Download error on https://pypi.python.org/simple/incremental/: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:749) -- Some packages may not be found!
    Couldn't find index page for 'incremental' (maybe misspelled?)
    Download error on https://pypi.python.org/simple/: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:749) -- Some packages may not be found!
    No local packages or working download links found for incremental>=16.10.1
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/45/r4yr9bbj29dfbtxqv75_785m0000gn/T/pip-build-02d49zb3/twisted/setup.py", line 21, in <module>
        setuptools.setup(**_setup["getSetupArgs"]())
      File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/distutils/core.py", line 108, in setup
        _setup_distribution = dist = klass(attrs)
      File "/Users/user/Documents/virtualenv/lib/python3.6/site-packages/setuptools/dist.py", line 316, in __init__
        self.fetch_build_eggs(attrs['setup_requires'])
      File "/Users/user/Documents/virtualenv/lib/python3.6/site-packages/setuptools/dist.py", line 371, in fetch_build_eggs
        replace_conflicting=True,
      File "/Users/user/Documents/virtualenv/lib/python3.6/site-packages/pkg_resources/__init__.py", line 846, in resolve
        dist = best[req.key] = env.best_match(req, ws, installer)
      File "/Users/user/Documents/virtualenv/lib/python3.6/site-packages/pkg_resources/__init__.py", line 1118, in best_match
        return self.obtain(req, installer)
      File "/Users/user/Documents/virtualenv/lib/python3.6/site-packages/pkg_resources/__init__.py", line 1130, in obtain
        return installer(requirement)
      File "/Users/user/Documents/virtualenv/lib/python3.6/site-packages/setuptools/dist.py", line 439, in fetch_build_egg
        return cmd.easy_install(req)
      File "/Users/user/Documents/virtualenv/lib/python3.6/site-packages/setuptools/command/easy_install.py", line 668, in easy_install
        raise DistutilsError(msg)
    distutils.errors.DistutilsError: Could not find suitable distribution for Requirement.parse('incremental>=16.10.1')

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/45/r4yr9bbj29dfbtxqv75_785m0000gn/T/pip-build-02d49zb3/twisted/
(virtualenv) user<strong i="30">@host</strong>:~/Documents/virtualenv$