Question

我目前正在使用python使用Gurobi求解器。以前，我刚刚使用文本编辑器和终端的混合来编写和运行我的模型，但我目前正在尝试使用Enthought Canopy Editor。我有一个模型，当我使用python model.py在终端中运行时，但是当我尝试在Canopy的iPython shell中执行%run model.py时，我得到：

%run /home/cdhagmann/Copy/Code_Env/Farmer/model.py
---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
/home/cdhagmann/Canopy/appdata/canopy-1.0.1.1189.rh5-x86_64/lib/python2.7/site-packages/IPython/utils/py3compat.pyc in execfile(fname, *where)
    181             else:
    182                 filename = fname
--> 183             __builtin__.execfile(filename, *where)

/home/cdhagmann/Copy/Code_Env/Farmer/model.py in <module>()
----> 1 from gurobipy import *
      2 from data_IO import read_data,currency
      3 import time
      4 
      5 # Import model data

ImportError: No module named gurobipy

我的猜测是终端和Canopy在不同的地方寻找模块，但我不知道如何纠正它。我在Gurobi小组网站上找到了关于Enthought Canopy and Gurobi on OS X 10.8的参考资料，但不知道这些指令与在Linux上做的有多大差别，甚至不知道他在Canopy的网站包装中安装Gurobi的意义。

更新：根据我点击的第一个链接找到的信息，我确实留下了盒装点击使Canopy成为我的默认目录。您必须手动添加PATH变量，我错过了他们说我必须这样做。所以我做到了。我现在在我的终端上运行Canopy的iPython版本（使用sys.path检查）;但是，当我尝试运行python时，我得到了一个巨大的错误列表。

cdhagmann@Crispin ~ $ python
Traceback (most recent call last):
  File "/usr/lib/python2.7/site.py", line 563, in <module>
    main()
  File "/usr/lib/python2.7/site.py", line 545, in main
    known_paths = addusersitepackages(known_paths)
  File "/usr/lib/python2.7/site.py", line 272, in addusersitepackages
    user_site = getusersitepackages()
  File "/usr/lib/python2.7/site.py", line 247, in getusersitepackages
    user_base = getuserbase() # this will also set USER_BASE
  File "/usr/lib/python2.7/site.py", line 237, in getuserbase
    USER_BASE = get_config_var('userbase')
  File "/usr/lib/python2.7/sysconfig.py", line 578, in get_config_var
    return get_config_vars().get(name)
  File "/usr/lib/python2.7/sysconfig.py", line 505, in get_config_vars
    import re
  File "/usr/lib/python2.7/re.py", line 105, in <module>
    import sre_compile
  File "/usr/lib/python2.7/sre_compile.py", line 14, in <module>
    import sre_parse
  File "/usr/lib/python2.7/sre_parse.py", line 17, in <module>
    from sre_constants import *
  File "/usr/lib/python2.7/sre_constants.py", line 18, in <module>
    from _sre import MAXREPEAT
ImportError: cannot import name MAXREPEAT

连连呢？

回答@Jonathan问题：

sys.prefix = '/usr'

sys.path：

/usr/lib/python2.7
/usr/lib/python2.7/plat-x86_64-linux-gnu
/usr/lib/python2.7/lib-tk
/usr/lib/python2.7/lib-old
/usr/lib/python2.7/lib-dynload
/usr/local/lib/python2.7/dist-packages
/usr/lib/python2.7/dist-packages
/usr/lib/python2.7/dist-packages/PILcompat
/usr/lib/python2.7/dist-packages/gtk-2.0
/usr/lib/pymodules/python2.7
/usr/lib/python2.7/dist-packages/ubuntu-sso-client

gurobipy.__file__ = '/usr/local/lib/python2.7/dist-packages/gurobipy/gurobipy.so'

Answer 1

如果为Canopy Python正确配置了终端，那么终端中的python和Canopy Python应该在同一个地方寻找模块。如果在安装过程中，您禁用了“将Canopy设置为默认Python”，或者如果您在安装后未重新启动终端，则不会自动正确配置它。

这些文章可以帮助您理解和配置：

http://docs.enthought.com/canopy/configure/faq.html#where-are-all-of-the-python-packages-in-my-user-python-environment

https://support.enthought.com/entries/23646538-Make-Canopy-s-Python-be-your-default-Python-i-e-on-the-PATH-

https://support.enthought.com/entries/23389761-Installing-packages-into-Canopy-Python-from-the-command-line

如果这些文章不足以让你解决这个问题，请报告 - 当你从终端运行python时，这些是什么？

sys.prefix
sys.path
gurobipy.__file__

在Linux上的Enthought Canopy Editor中使用Gurobi求解器

1 个答案: