user3313834 user3313834 - 1 year ago 42
Python Question

pythran export dict with tuples as key

I try to use pythran in a function that need an int array and for the second arg a dict with tuples of int as keys and an int as value:

myarray = np.array([[0, 0], [0, 1], [1, 1],
[1, 2], [2, 2], [1, 3]])

dict_with_tuples_key = {(0, 1): 1, (3, 7): 1}

What is the correct way to inform pythran about the dict ?:

#pythran export update_dict((int, int):int dict, int[][])
def update_dict(dict_with_tuples_key, myarray):
# do something with dict_with_tuples_key and myarray
# return and updated dict_with_tuples_key
return dict_with_tuples_key

With (int, int):int dict I get this error:

File "/usr/lib/python2.7/", line 526, in findsource
file = getfile(object)
File "/usr/lib/python2.7/", line 403, in getfile
raise TypeError('{!r} is a built-in module'.format(object))
TypeError: <module 'sys' (built-in)> is a built-in module


From your backtrace, it seems you're importing sys. In that kind of situation, pythran tries to get the source of the import module to compile it. As sys is a built-in module, it fails.