# can't install lrslib [closed]

I'm on OSX 10.11.6.

```
sage -version
SageMath version 7.2, Release Date: 2016-05-15
```

I'm trying to install the package lrslib using

sage -i lrslib

```
real 0m10.849s
user 0m9.633s
sys 0m0.907s
Successfully installed lrslib-051
Running the test suite for lrslib-051...
lrs ext/test/cut16_11.ext > testout1
echo `grep -G Volume testout1` > testout1
echo "*Volume= 32768/14175" > testout2
diff testout1 testout2
lrs ine/test/cyclic17_8.ine > testout1
echo `grep -G Totals testout1` > testout1
echo "*Totals: vertices=935 rays=0 bases=935 integer_vertices=0" > testout2
diff testout1 testout2
rm testout1
rm testout2
real 0m0.101s
user 0m0.065s
sys 0m0.027s
Deleting temporary build directory
/Applications/SageMath-7.2.app/Contents/Resources/sage/local/var/tmp/sage/build/lrslib-051
Finished installing lrslib-051.spkg
real 1m20.160s
user 0m55.896s
sys 0m19.371s
Sage build/upgrade complete!
```

It seems to install successfully, however when I go to run sage I get the following error and crashlog:

```
***************************************************************************
IPython post-mortem report
{'commit_hash': u'44136e4',
'commit_source': 'installation',
'default_encoding': 'UTF-8',
'ipython_path': '/Applications/SageMath-7.2.app/Contents/Resources/sage/local/lib/python2.7/site-packages/IPython',
'ipython_version': '4.1.2',
'os_name': 'posix',
'platform': 'Darwin-15.6.0-x86_64-i386-64bit',
'sys_executable': '/Applications/SageMath-7.2.app/Contents/Resources/sage/local/bin/python',
'sys_platform': 'darwin',
'sys_version': '2.7.10 (default, Jun 9 2016, 11:40:29) \n[GCC 4.9.3]'}
***************************************************************************
***************************************************************************
Crash traceback:
---------------------------------------------------------------------------
---------------------------------------------------------------------------
ImportErrorPython 2.7.10: /Applications/SageMath-7.2.app/Contents/Resources/sage/local/bin/python
Wed Aug 3 12:05:41 2016
A problem occurred executing Python code. Here is the sequence of function
calls leading up to the error, with the most recent (innermost) call last.
/Applications/SageMath-7.2.app/Contents/Resources/sage/src/bin/sage-ipython in <module>()
1 #!/usr/bin/env python
2 # -*- coding: utf-8 -*-
3 """
4 Sage IPython startup script.
5 """
6
7 # Install extra readline commands before IPython initialization
8 from sage.repl.readline_extra_commands import *
9
10 from sage.repl.interpreter import SageTerminalApp
11
12 app = SageTerminalApp.instance()
---> 13 app.initialize()
global app.initialize = <bound method SageTerminalApp.initialize of <sage.repl.interpreter.SageTerminalApp object at 0x1032dc390>>
14 app.start()
<decorator-gen-111> in initialize(self=<sage.repl.interpreter.SageTerminalApp object>, argv=None)
/Applications/SageMath-7.2.app/Contents/Resources/sage/local/lib/python2.7/site-packages/traitlets/config/application.py in catch_config_error(method=<function initialize>, app=<sage.repl.interpreter.SageTerminalApp object>, *args=(None,), **kwargs={})
59
....
....
....
/Applications/SageMath-7.2.app/Contents/Resources/sage/local/lib/python2.7/site-packages/sage/misc/functional.py in <module>()
15 #*****************************************************************************
16 # Copyright (C) 2004 William Stein <------------->
17 #
18 # This program is free software: you can redistribute it and/or modify
19 # it under the terms of the GNU General Public License as published by
20 # the Free Software Foundation, either version 2 of the License, or
21 # (at your option) any later version.
22 # -------------
23 #*****************************************************************************
24
25 import sage.misc.latex
26 import sage.interfaces.expect
27 import sage.interfaces.mathematica
28
29
---> 30 from sage.rings.complex_double import CDF
global sage.rings.complex_double = undefined
global CDF = undefined
31 from sage.rings.real_double import ...
```