使用 certbot-auto 安装let s encrypt 证书报错?报错

使用 certbot-auto 安装let s encrypt 证书报错

错误信息:
pip prints the following errors: 
=====================================================
Collecting argparse==1.4.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 11))
  Downloading http://mirrors.aliyun.com/pypi/packages/f2/94/3af39d34be01a24a6e65433d19e107099374224905f1e0cc6bbe1fd22a2f/argparse-1.4.0-py2.py3-none-any.whl
Collecting pycparser==2.14 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 17))
  Downloading http://mirrors.aliyun.com/pypi/packages/6d/31/666614af3db0acf377876d48688c5d334b6e493b96d21aa7d332169bee50/pycparser-2.14.tar.gz (223kB)
Collecting cffi==1.4.2 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 21))
  Downloading http://mirrors.aliyun.com/pypi/packages/92/00/c8670a2898ab7121cdac3b59f4307977a86e08a59efd662f6c05200a2f11/cffi-1.4.2.tar.gz (365kB)
Collecting ConfigArgParse==0.10.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 38))
  Downloading http://mirrors.aliyun.com/pypi/packages/d0/b8/8f7689980caa66fc02671f5837dc761e4c7a47c6ca31b3e38b304cbc3e73/ConfigArgParse-0.10.0.tar.gz
Collecting configobj==5.0.6 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 40))
  Downloading http://mirrors.aliyun.com/pypi/packages/64/61/079eb60459c44929e684fa7d9e2fdca403f67d64dd9dbac27296be2e0fab/configobj-5.0.6.tar.gz
Collecting cryptography==1.5.3 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 42))
  Downloading http://mirrors.aliyun.com/pypi/packages/6c/c5/7fc1f8384443abd2d71631ead026eb59863a58cad0149b94b89f08c8002f/cryptography-1.5.3.tar.gz (400kB)
Collecting enum34==1.1.2 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 65))
  Downloading http://mirrors.aliyun.com/pypi/packages/6f/e9/08fd439384b7e3d613e75a6c8236b8e64d90c47d23413493b38d4229a9a5/enum34-1.1.2.tar.gz (46kB)
Collecting funcsigs==0.4 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 68))
  Downloading http://mirrors.aliyun.com/pypi/packages/5e/9f/025d4c92c6a1a94313cdf0813cd76f5700f8e5434fa15165090a6446ae22/funcsigs-0.4-py2.py3-none-any.whl
Collecting idna==2.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 71))
  Downloading http://mirrors.aliyun.com/pypi/packages/7c/75/b566d769455929ee6ab308d8a1c6c5aecc4928e72b25d42dd019c99f7015/idna-2.0-py2.py3-none-any.whl (61kB)
Collecting ipaddress==1.0.16 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 74))
  Downloading http://mirrors.aliyun.com/pypi/packages/23/6a/813ac29a01e4c33c19c2bded98ac3d4266ebbf0bd2c0eb0020e1c969958d/ipaddress-1.0.16-py27-none-any.whl
Collecting linecache2==1.0.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 77))
  Downloading http://mirrors.aliyun.com/pypi/packages/c7/a3/c5da2a44c85bfbb6eebcfc1dde24933f8704441b98fdde6528f4831757a6/linecache2-1.0.0-py2.py3-none-any.whl
Collecting ordereddict==1.1 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 80))
  Downloading http://mirrors.aliyun.com/pypi/packages/53/25/ef88e8e45db141faa9598fbf7ad0062df8f50f881a36ed6a0073e1572126/ordereddict-1.1.tar.gz
Collecting parsedatetime==2.1 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 82))
  Downloading http://mirrors.aliyun.com/pypi/packages/85/1f/13fc06097e516f6259d62cea502b116451321c96e18a9d0fff9da3442e02/parsedatetime-2.1-py2-none-any.whl
Collecting pbr==1.8.1 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 85))
  Downloading http://mirrors.aliyun.com/pypi/packages/fc/37/94af8387babb09796d306b18cf94ee5c70388c875a16d8a88e471500452c/pbr-1.8.1-py2.py3-none-any.whl (89kB)
Collecting pyasn1==0.1.9 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 88))
  Downloading http://mirrors.aliyun.com/pypi/packages/69/be/e8946f7867b84b0e61a613f6fd56f63266190b1a470f945178f7cbc4d0ae/pyasn1-0.1.9-py2.py3-none-any.whl
Collecting pyOpenSSL==16.2.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 100))
  Downloading http://mirrors.aliyun.com/pypi/packages/ac/93/b4cd538d31adacd07f83013860db6b88d78755af1f3fefe68ec22d397e7b/pyOpenSSL-16.2.0-py2.py3-none-any.whl (43kB)
Collecting pyparsing==2.1.8 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 103))
  Downloading http://mirrors.aliyun.com/pypi/packages/85/b9/188515f35f78533b3f82966a2c3f1a71a86df8b801367ee75a77191a861d/pyparsing-2.1.8-py2.py3-none-any.whl (54kB)
Collecting pyRFC3339==1.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 112))
  Downloading http://mirrors.aliyun.com/pypi/packages/9b/0a/decfa17e7707afca17d6e9595ff5c79c1c71c74063ad95576f897ed3a9f1/pyRFC3339-1.0-py2.py3-none-any.whl
Collecting python-augeas==0.5.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 115))
  Downloading http://mirrors.aliyun.com/pypi/packages/41/e6/4b6740cb3e31b82252099994cea751c648b846aa7874343c31d68c2215be/python-augeas-0.5.0.tar.gz (90kB)
Collecting pytz==2015.7 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 117))
  Downloading http://mirrors.aliyun.com/pypi/packages/c0/28/973f0382c803b21734cd7e97e0590928148ee21b1cbe8f7fed8b506204fb/pytz-2015.7-py2.py3-none-any.whl (476kB)
Collecting requests==2.12.1 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 131))
  Downloading http://mirrors.aliyun.com/pypi/packages/9b/31/e9925a2b9a06f97c3450bac6107928d3533bfe64ca5615442504104321e8/requests-2.12.1-py2.py3-none-any.whl (574kB)
Collecting six==1.10.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 134))
  Downloading http://mirrors.aliyun.com/pypi/packages/c8/0a/b6723e1bc4c516cb687841499455a8505b44607ab535be01091c0f24f079/six-1.10.0-py2.py3-none-any.whl
Collecting traceback2==1.4.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 137))
  Downloading http://mirrors.aliyun.com/pypi/packages/17/0a/6ac05a3723017a967193456a2efa0aa9ac4b51456891af1e2353bb9de21e/traceback2-1.4.0-py2.py3-none-any.whl
Collecting unittest2==1.1.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 140))
  Downloading http://mirrors.aliyun.com/pypi/packages/72/20/7f0f433060a962200b7272b8c12ba90ef5b903e218174301d0abfd523813/unittest2-1.1.0-py2.py3-none-any.whl (96kB)
Collecting zope.component==4.2.2 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 143))
  Downloading http://mirrors.aliyun.com/pypi/packages/4c/c4/3f77127c876f49af478e8ea4dc223cda17730bb273c0d1606a4114c64008/zope.component-4.2.2.tar.gz (546kB)
Collecting zope.event==4.1.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 145))
  Downloading http://mirrors.aliyun.com/pypi/packages/0e/87/75e3d62a3506953c2e56d15a150de31e5d92310e87db2c8b102dc01b0b8e/zope.event-4.1.0.tar.gz (476kB)
Collecting zope.interface==4.1.3 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 147))
  Downloading http://mirrors.aliyun.com/pypi/packages/9d/81/2509ca3c6f59080123c1a8a97125eb48414022618cec0e64eb1313727bfe/zope.interface-4.1.3.tar.gz (141kB)
Collecting mock==1.0.1 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 165))
  Downloading http://mirrors.aliyun.com/pypi/packages/15/45/30273ee91feb60dabb8fbb2da7868520525f02cf910279b3047182feed80/mock-1.0.1.zip (861kB)
Collecting letsencrypt==0.7.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 168))
  Downloading http://mirrors.aliyun.com/pypi/packages/fd/21/0c6f33829fadec8aca0c1ebb4d6f8101c05899356a58d1b2e506cb77cf18/letsencrypt-0.7.0-py2-none-any.whl
Collecting acme==0.12.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 174))
  Could not find a version that satisfies the requirement acme==0.12.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 174)) (from versions: 0.0.0.dev20151006, 0.0.0.dev20151008, 0.0.0.dev20151017, 0.0.0.dev20151020, 0.0.0.dev20151021, 0.0.0.dev20151024, 0.0.0.dev20151030, 0.0.0.dev20151104, 0.0.0.dev20151107, 0.0.0.dev20151108, 0.0.0.dev20151114, 0.0.0.dev20151123, 0.0.0.dev20151201, 0.1.0, 0.1.1, 0.2.0, 0.3.0, 0.4.0, 0.4.1, 0.4.2, 0.5.0, 0.6.0, 0.7.0, 0.8.0, 0.8.1, 0.9.0, 0.9.1, 0.9.2, 0.9.3, 0.10.0, 0.10.1, 0.10.2, 0.11.0, 0.11.1)
No matching distribution found for acme==0.12.0 (from -r /tmp/tmp.wcsDr4qYXI/letsencrypt-auto-requirements.txt (line 174))
/root/.local/share/letsencrypt/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:315: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#snimissingwarning.
  SNIMissingWarning
/root/.local/share/letsencrypt/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:120: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
You are using pip version 8.0.3, however version 9.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
=====================================================

Certbot has problem setting up the virtual environment.

We were not be able to guess the right solution from your pip 
output.

Consult https://certbot.eff.org/docs/install.html#problems-with-python-virtual-environment
for possible solutions.
You may also find some support resources at https://certbot.eff.org/support/ .