如何通过Jython导入PIP包？

Question

在参考hooking into PIP from Jython，它看起来像，可能的话，PIP附带的Jython：

• How can I install various Python libraries in Jython?

• Jython easy_install error

• How can I use jython setup.py install?

如何，具体而言，来自Jython本身，是PIP invok ED？既要安装软件包，更重要的是要导入该软件包以供参考？

我没有看到用Jython编写的具体代码示例。

Answer 1

一旦Jython的2.7安装到~/则：

thufir@doge:~$ 
thufir@doge:~$ jython --version 
Jython 2.7.0 
thufir@doge:~$ 
thufir@doge:~$ pip --version 
pip 1.6.dev1 from /home/thufir/jython/Lib/site-packages (python 2.7) 
thufir@doge:~$ 
thufir@doge:~$ pip freeze 
thufir@doge:~$ 
thufir@doge:~$ pip install virtualenv 
Downloading/unpacking virtualenv 
    Downloading virtualenv-15.1.0-py2.py3-none-any.whl (1.8MB): 1.8MB 
downloaded 
Installing collected packages: virtualenv 
Successfully installed virtualenv 
Cleaning up... 
thufir@doge:~$ 
thufir@doge:~$ mkdir nfl 
thufir@doge:~$ 
thufir@doge:~$ cd nfl 
thufir@doge:~/nfl$ 
thufir@doge:~/nfl$ jython -m virtualenv jve 
Cannot find file /home/thufir/jython/Include (bad symlink) 
New jython executable in /home/thufir/nfl/jve/bin/jython 
Installing setuptools, pip, wheel...done. 
thufir@doge:~/nfl$ 
thufir@doge:~/nfl$ . jve/bin/activate 
(jve) thufir@doge:~/nfl$ 
(jve) thufir@doge:~/nfl$ pip install nflgame 
Collecting nflgame 
/home/thufir/nfl/jve/Lib/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:310: 
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. You can upgrade to a newer version of Python to 
solve this. For more information, see 
https://urllib3.readthedocs.io/en/latest/security.html#snimissingwarning. 
    warnings.warn(
/home/thufir/nfl/jve/Lib/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:115: 
InsecurePlatformWarning: A true SSLContext object is not available. This 
prevents urllib3 from configuring SSL appropriately and may cause certain 
SSL connections to fail. You can upgrade to a newer version of Python to 
solve this. For more information, see 
https://urllib3.readthedocs.io/en/latest/security.html#insecureplatformwarning. 
    warnings.warn(
    Downloading nflgame-1.2.20.tar.gz (34.0MB) 
    100% 
|████████████████████████████████| 34.0MB 11kB/s 
Collecting pytz (from nflgame) 
    Downloading pytz-2016.10-py2.py3-none-any.whl (483kB) 
    100% 
|████████████████████████████████| 491kB 158kB/s 
Collecting httplib2 (from nflgame) 
    Downloading httplib2-0.10.3.tar.gz (204kB) 
    100% 
|████████████████████████████████| 204kB 136kB/s 
Collecting beautifulsoup4 (from nflgame) 
    Downloading beautifulsoup4-4.5.3-py2-none-any.whl (85kB) 
    100% 
|████████████████████████████████| 92kB 147kB/s 
Building wheels for collected packages: nflgame, httplib2 
    Running setup.py bdist_wheel for nflgame ... done 
    Stored in directory: 
/home/thufir/.cache/pip/wheels/12/e2/67/97dfa7f48af53140aa18136c8fbf019c455600b00b6cd4f07d 
    Running setup.py bdist_wheel for httplib2 ... done 
    Stored in directory: 
/home/thufir/.cache/pip/wheels/ca/ac/5f/749651f7925b231103f5316cacca82a487810c22d30f011c0c 
Successfully built nflgame httplib2 
Installing collected packages: pytz, httplib2, beautifulsoup4, nflgame 
Successfully installed beautifulsoup4-4.5.3 httplib2-0.10.3 nflgame-1.2.20 
pytz-2016.10 
(jve) thufir@doge:~/nfl$ 
(jve) thufir@doge:~/nfl$ pip freeze 
appdirs==1.4.0 
beautifulsoup4==4.5.3 
httplib2==0.10.3 
nflgame==1.2.20 
packaging==16.8 
pyparsing==2.1.10 
pytz==2016.10 
six==1.10.0 
(jve) thufir@doge:~/nfl$ 

然后：

thufir@doge:~/nfl$ 
thufir@doge:~/nfl$ . jve/bin/activate 
(jve) thufir@doge:~/nfl$ 
(jve) thufir@doge:~/nfl$ jython sample.py 
L.McCoy 31 carries for 184 yards and 1 TDs 
T.Pryor 13 carries for 112 yards and 0 TDs 
S.Vereen 14 carries for 101 yards and 0 TDs 
A.Peterson 18 carries for 93 yards and 2 TDs 
R.Bush 21 carries for 90 yards and 0 TDs 
(jve) thufir@doge:~/nfl$ 
(jve) thufir@doge:~/nfl$ cat sample.py 
import nflgame 

games = nflgame.games(2013, week=1) 
players = nflgame.combine_game_stats(games) 
for p in players.rushing().sort('rushing_yds').limit(5): 
    msg = '%s %d carries for %d yards and %d TDs' 
    print msg % (p, p.rushing_att, p.rushing_yds, p.rushing_tds) 
(jve) thufir@doge:~/nfl$ 

虽然它不是严格地需要使用虚拟ENV。