con*_*own 93 python pip nltk easy-install
我很难用pip安装几乎任何东西.我是编码的新手,所以我想也许这是我一直做错的事情,并选择了easy_install以获得我需要做的大部分工作,这通常都有效.但是,现在我正在尝试下载nltk库,并且都没有完成工作.
我试过进去
sudo pip install nltk
但得到了以下回应:
/Library/Frameworks/Python.framework/Versions/2.7/bin/pip run on Sat May 4 00:15:38 2013
Downloading/unpacking nltk
Getting page https://pypi.python.org/simple/nltk/
Could not fetch URL [need more reputation to post link]: There was a problem confirming the ssl certificate: <urlopen error [Errno 1] _ssl.c:504: error:0D0890A1:asn1 encoding routines:ASN1_verify:unknown message digest algorithm>
Will skip URL [need more reputation to post link]/simple/nltk/ when looking for download links for nltk
Getting page [need more reputation to post link]/simple/
Could not fetch URL https://pypi.python. org/simple/: There was a problem confirming the ssl certificate: <urlopen error [Errno 1] _ssl.c:504: error:0D0890A1:asn1 encoding routines:ASN1_verify:unknown message digest algorithm>
Will skip URL [need more reputation to post link] when looking for download links for nltk
Cannot fetch index base URL [need more reputation to post link]
URLs to search for versions for nltk:
* [need more reputation to post link]
Getting page [need more reputation to post link]
Could not fetch URL [need more reputation to post link]: There was a problem confirming the ssl certificate: <urlopen error [Errno 1] _ssl.c:504: error:0D0890A1:asn1 encoding routines:ASN1_verify:unknown message digest algorithm>
Will skip URL [need more reputation to post link] when looking for download links for nltk
Could not find any downloads that satisfy the requirement nltk
No distributions at all found for nltk
Exception information:
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-1.3.1-py2.7.egg/pip/basecommand.py", line 139, in main
status = self.run(options, args)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-1.3.1-py2.7.egg/pip/commands/install.py", line 266, in run
requirement_set.prepare_files(finder, force_root_egg_info=self.bundle, bundle=self.bundle)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-1.3.1-py2.7.egg/pip/req.py", line 1026, in prepare_files
url = finder.find_requirement(req_to_install, upgrade=self.upgrade)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-1.3.1-py2.7.egg/pip/index.py", line 171, in find_requirement
raise DistributionNotFound('No distributions at all found for %s' % req)
DistributionNotFound: No distributions at all found for nltk
--easy_install installed fragments of the library and the code ran into trouble very quickly upon trying to run it.
有关这个问题的任何想法？我真的很感激一些反馈,我可以在此期间获得pip工作或解决问题.
Oli*_*ver 131
我发现将pypi主机指定为受信任是足够的.例:
pip install --trusted-host pypi.python.org pytest-xdist
pip install --trusted-host pypi.python.org --upgrade pip
这解决了以下错误:
Could not fetch URL https://pypi.python.org/simple/pytest-cov/: There was a problem confirming the ssl certificate: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:600) - skipping
Could not find a version that satisfies the requirement pytest-cov (from versions: )
No matching distribution found for pytest-cov
2018年4月更新:对于收到TLSV1_ALERT_PROTOCOL_VERSION错误的任何人:它与OP的可信主机/验证问题或此答案无关.而是TLSV1错误是因为您的解释器不支持TLS v1.2,您必须升级您的解释器.例如见https://news.ycombinator.com/item?id=13539034,http://pyfound.blogspot.ca/2017/01/time-to-upgrade-your-python-tls-v12.html和HTTPS ://bugs.python.org/issue17128.
更新2019年2月:对于某些人来说,升级点数可能就足够了.如果上述错误阻止您执行此操作,请使用get-pip.py.例如在Linux上,
curl https://bootstrap.pypa.io/get-pip.py
sudo python get-pip.py
有关详细信息,请访问https://pip.pypa.io/en/stable/installing/.
小智 39
我使用了pip版本9.0.1并遇到了同样的问题,上面的所有答案都没有解决问题,而且由于其他原因我无法使用brew安装python/pip.
升级点来9.0.3解决问题.因为我无法使用pip升级pip,所以我下载了源代码并手动安装了它.
sudo python3 pip-9.0.3.tar.gz - 安装点子或者你可以安装更新的点子:
curl https://bootstrap.pypa.io/get-pip.py | python
小智 32
Pypi删除了对小于1.2的TLS版本的支持
你需要重新安装Pip,做
curl https://bootstrap.pypa.io/get-pip.py | python
或者对于全局Python:
curl https://bootstrap.pypa.io/get-pip.py | sudo python
Aac*_*hen 28
我使用了pip3版本,9.0.1并且最近无法通过命令安装任何软件包pip3 install.
Mac OS版本:EI Captain 10.11.5.
python版本: 3.5
我试过这个命令:
curl https://bootstrap.pypa.io/get-pip.py | python
它对我不起作用.
所以我卸载了旧的pip并10.0.0通过输入以下命令安装了最新的版本:
python3 -m pip uninstall pip setuptools
curl https://bootstrap.pypa.io/get-pip.py | python3
现在我的问题解决了.如果你使用python2,你可以用python替换python3.我希望它也适合你.
我尝试了一些流行的答案，但仍然无法使用pip install.
我的具体错误是'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain使用 Miniconda for Windows（安装程序 Miniconda3-py37_4.8.3-Windows-x86.exe）。
当我这样做时，它终于起作用了：
pip install -r requirements.txt --trusted-host pypi.org --trusted-host pypi.python.org --trusted-host files.pythonhosted.org
具体来说，我添加了这个以使其工作： --trusted-host pypi.org --trusted-host pypi.python.org --trusted-host files.pythonhosted.org
小智 6
要安装任何其他软件包,我必须使用最新版本的pip,因为9.0.1有这个SSL问题.要通过pip本身升级pip,我必须先解决这个SSL问题.为了跳出这个无限循环,我发现这只适用于我的方式.
.whl最新版本的文件.sudo pip install pip-10.0.1-py2.py3-none-any.whl
现在pip是最新版本,可以安装任何东西.
解决方案 -通过标记以下受信任的主机来安装任何软件包
临时解决方案
pip install --trusted-host pypi.python.org --trusted-host pypi.org --trusted-host files.pythonhosted.org {package name}
永久解决方案 -将您的PIP（9.0.1版问题）更新为最新版本。
pip install --trusted-host pypi.python.org --trusted-host pypi.org --trusted-host files.pythonhosted.org pytest-xdist
python -m pip install --trusted-host pypi.python.org --trusted-host pypi.org --trusted-host files.pythonhosted.org --upgrade pip
正如blackjar在上面发布的那样，以下几行对我有用
pip --trusted-host pypi.python.org --trusted-host files.pythonhosted.org --trusted-host pypi.org install xxx
你需要给所有三个--trusted-host options。在查看答案后，我只尝试使用第一个，但它对我不起作用。
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