AttributeError: 'NoneType' object has no attribute 'checkcache'

[cooldean32]

Hello Sir/Madam,

I am new in Python. I am wondering if there is any one who can fix the error message for me in Eclipse Pydev. Actually, the sourcecode is downloaded from website and I try to import an Django Porject. I want to see how it works step by setp.

I run & debug manage.py in Pydev and get an error below. I hope someone can give some advice. Any suggestion is highly appreciated. Thanks.

Regards, Dean

Linux Debian 6
Python 2.7
Eclipse Naen + PyDev

==============Error Message==================
warning: Debugger speedups using cython not found. Run '"/usr/bin/python" "/home/deanhuang/Documents/eclipse-jee-neon-3-linux-gtk/plugins/org.python.pydev_5.8.0.201706061859/pysrc/setup_cython.py" build_ext --inplace' to build.
pydev debugger: starting (pid: 4375)
Finding files... done.
Importing test modules ... done.
Creating test database for alias 'default'...
Ran 0 tests in 0.000s
OK
Destroying test database for alias 'default'...
Unhandled exception in thread started by <bound method DumpThreads.__bootstrap of <DumpThreads(Thread-6, stopped daemon -1251673232)>>
Traceback (most recent call last):
File "/usr/lib/python2.7/threading.py", line 525, in __bootstrap
self.__bootstrap_inner()
File "/usr/lib/python2.7/threading.py", line 565, in __bootstrap_inner
(self.name, _format_exc()))
File "/usr/lib/python2.7/traceback.py", line 241, in format_exc
return ''.join(format_exception(etype, value, tb, limit))
File "/usr/lib/python2.7/traceback.py", line 141, in format_exception
list = list + format_tb(tb, limit)
File "/usr/lib/python2.7/traceback.py", line 76, in format_tb
return format_list(extract_tb(tb, limit))
File "/usr/lib/python2.7/traceback.py", line 100, in extract_tb
linecache.checkcache(filename)
AttributeError: 'NoneType' object has no attribute 'checkcache'