Python quit unexpectedly, Segmentation fault: 11

[s.m.asgh...@gmail.com]

I have installed python 2.7.12. I used "pip install pulp" to install pulp package. My problem is that "import pulp" gives me the following error. How can I solve this problem. Let me know if you need something else to debug. I have a Mackbook pro with El Capitan 10.11.5 os.

import pulp
Segmentation fault: 11


Process: Python [1707]
Path: /Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python
Identifier: Python
Version: 2.7.12 (2.7.12)
Code Type: X86-64 (Native)
Parent Process: bash [1695]
Responsible: Terminal [1693]
User ID: 501

Date/Time: 2016-06-28 12:43:05.355 -0700
OS Version: Mac OS X 10.11.5 (15F34)
Report Version: 11
Anonymous UUID: BAE25C51-36E8-EE34-FFC5-11B186F972FB

Sleep/Wake UUID: 18A10F82-634B-4BE9-9373-AE13BA40FC4C

Time Awake Since Boot: 32000 seconds
Time Since Wake: 2900 seconds

System Integrity Protection: enabled

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000008

VM Regions Near 0x8:
--> 
__TEXT 0000000100000000-0000000100001000 [ 4K] r-x/rwx SM=COW /Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 org.python.python 0x0000000103427889 PyImport_AddModule + 24
1 gurobipy.so 0x00000001015a4327 __Pyx_FetchCommonType + 23