更新anaconda和安装新软件包的问题

Question

我想在Ubuntu-Linux上的anaconda上安装seaborn。

conda install -c anaconda seaborn=0.7.1 

我收到以下错误消息：

Fetching package metadata .../home/moritz/Python/anaconda3/lib/python3.5/site-packages/requests/packages/urllib3/connection.py:337: SubjectAltNameWarning: Certificate for conda.anaconda.org has no `subjectAltName`, falling back to check for a `commonName` for now. This feature is being removed by major browsers and deprecated by RFC 2818. (See https://github.com/shazow/urllib3/issues/497 for details.) 
    SubjectAltNameWarning 
/home/moritz/Python/anaconda3/lib/python3.5/site-packages/requests/packages/urllib3/connection.py:337: SubjectAltNameWarning: Certificate for conda.anaconda.org has no `subjectAltName`, falling back to check for a `commonName` for now. This feature is being removed by major browsers and deprecated by RFC 2818. (See https://github.com/shazow/urllib3/issues/497 for details.) 
    SubjectAltNameWarning 
..An unexpected error has occurred. 
Please consider posting the following information to the 
conda GitHub issue tracker at: 

    https://github.com/conda/conda/issues 

Current conda install: 

      platform : linux-64 
     conda version : 4.2.12 
    conda is private : False 
    conda-env version : 4.2.12 
conda-build version : 1.19.0 
    python version : 3.5.2.final.0 
    requests version : 2.12.1 
    root environment : /home/moritz/Python/anaconda3 (writable) 
default environment : /home/moritz/Python/anaconda3 
    envs directories : /home/moritz/Python/anaconda3/envs 
     package cache : /home/moritz/Python/anaconda3/pkgs 
     channel URLs : https://repo.continuum.io/pkgs/free/linux-64 
         https://repo.continuum.io/pkgs/free/noarch 
         https://repo.continuum.io/pkgs/pro/linux-64 
         https://repo.continuum.io/pkgs/pro/noarch 
     config file : None 
     offline mode : False 

当我运行

$ /home/moritz/Python/anaconda3/bin/conda install -c anaconda seaborn=0.7.1 

我收到以下错误消息：

Traceback (most recent call last): 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/conda/exceptions.py", line 479, in conda_exception_handler 
    return_value = func(*args, **kwargs) 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/conda/cli/main.py", line 145, in _main 
    exit_code = args.func(args, p) 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/conda/cli/main_install.py", line 80, in execute 
    install(args, parser, 'install') 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/conda/cli/install.py", line 238, in install 
    prefix=prefix) 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/conda/api.py", line 24, in get_index 
    index = fetch_index(channel_urls, use_cache=use_cache, unknown=unknown) 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/conda/fetch.py", line 310, in fetch_index 
    repodatas = [(u, f.result()) for u, f in zip(urls, futures)] 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/conda/fetch.py", line 310, in <listcomp> 
    repodatas = [(u, f.result()) for u, f in zip(urls, futures)] 
    File "/home/moritz/Python/anaconda3/lib/python3.5/concurrent/futures/_base.py", line 398, in result 
    return self.__get_result() 
    File "/home/moritz/Python/anaconda3/lib/python3.5/concurrent/futures/_base.py", line 357, in __get_result 
    raise self._exception 
    File "/home/moritz/Python/anaconda3/lib/python3.5/concurrent/futures/thread.py", line 55, in run 
    result = self.fn(*self.args, **self.kwargs) 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/conda/fetch.py", line 74, in func 
    res = f(*args, **kwargs) 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/conda/fetch.py", line 116, in fetch_repodata 
    timeout=(3.05, 60)) 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/requests/sessions.py", line 501, in get 
    return self.request('GET', url, **kwargs) 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/requests/sessions.py", line 488, in request 
    resp = self.send(prep, **send_kwargs) 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/requests/sessions.py", line 609, in send 
    r = adapter.send(request, **kwargs) 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/requests/adapters.py", line 423, in send 
    timeout=timeout 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/requests/packages/urllib3/connectionpool.py", line 594, in urlopen 
    chunked=chunked) 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/requests/packages/urllib3/connectionpool.py", line 350, in _make_request 
    self._validate_conn(conn) 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/requests/packages/urllib3/connectionpool.py", line 835, in _validate_conn 
    conn.connect() 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/requests/packages/urllib3/connection.py", line 330, in connect 
    cert = self.sock.getpeercert() 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/requests/packages/urllib3/contrib/pyopenssl.py", line 324, in getpeercert 
    'subjectAltName': get_subj_alt_name(x509) 
    File "/home/moritz/Python/anaconda3/lib/python3.5/site-packages/requests/packages/urllib3/contrib/pyopenssl.py", line 171, in get_subj_alt_name 
    ext = cert.extensions.get_extension_for_class(
AttributeError: 'Extensions' object has no attribute 'get_extension_for_class'` 

任何想法问题可能在这里？提前谢谢了。

Answer 1

请看这里： https://github.com/conda/conda/issues/3929

问题是一个老版本的加密包。它可以是固定的运行：

CONDA_SSL_VERIFY=false conda update pyopenssl 

Answer 2

另一种方法来禁用SSL证书验证，将在Windows上运行，以及：

添加ssl_verify: False到.condarc文件。

.condarc默认情况下不包括文件，但是在您第一次运行conda config命令时，它会自动在用户的主目录中创建。

要设置ssl_verify下列命令可以被用来：

conda config --set ssl_verify False。