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 …