Hi,
I was trying to learn a bit of weave, but there seems to be some
problem. The code I used is
import scipy.weave as weave
a, b = 10, 5
code = \
'''
int temp;
temp = a;
a = b;
b = temp;
'''
weave.inline(code, ['a', 'b'])
print a, b
When I ran this code in sage notebook, I got the following error
Traceback (most recent call last): print a, b
File "/home/rajeev/bin/sage-4.2/local/lib/python2.6/site-packages/
scipy/weave/inline_tools.py", line 321, in inline
results = attempt_function_call(code,local_dict,global_dict)
File "/home/rajeev/bin/sage-4.2/local/lib/python2.6/site-packages/
scipy/weave/inline_tools.py", line 389, in attempt_function_call
function_list = function_catalog.get_functions(code,module_dir)
File "/home/rajeev/bin/sage-4.2/local/lib/python2.6/site-packages/
scipy/weave/catalog.py", line 612, in get_functions
function_list = self.get_cataloged_functions(code)
File "/home/rajeev/bin/sage-4.2/local/lib/python2.6/site-packages/
scipy/weave/catalog.py", line 526, in get_cataloged_functions
if cat is not None and code in cat:
File "/home/rajeev/bin/sage-4.2/local/lib/python/shelve.py", line
110, in __contains__
return key in self.dict
File "/home/rajeev/bin/sage-4.2/local/lib/python2.6/site-packages/
scipy/io/dumbdbm_patched.py", line 73, in __getitem__
pos, siz = self._index[key] # may raise KeyError
KeyError: 0
The same code runs in python, but doesn't do what I want it to do,
i.e. interchange the values of a and b. I think this is due to 'call
by value' but I am not sure. I hope its OK to ask this question here.
Best wishes,
Rajeev
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