Python Data Structure Recommendations for a 2D Grid -

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i looking implement ant colony optimization algorithm in python, though new both python , object oriented programming learning curve has been rather steep. @ point, stuck how address following situation:

  • as ants walk around 2d grid, encounter obstacles, pheromone deposits other ants, food, etc. data structure use represent 2d world , aforementioned properties of each cell?

i had tried 2d array, thinking array[x-coord][y-coord] point {} (dictionary) appropriate properties (obstacle: 'yes / 'no', pheromone level: x %, etc.). unfortunately, though numpy lets me create 2d array, cannot assign dictionary objects various coordinates.

from numpy import *  myarray = array([[1,2,3,4],                  [5,6,7,8],                  [9,10,11,12]])  myarray[2][2]={}

returns:

traceback (most recent call last):   file "/users/amormachine/desktop/pythontest.py", line 7, in <module>     myarray[2][2]={} typeerror: long() argument must string or number, not 'dict' [finished in 0.6s exit code 1]

i not committed either dictionaries or paradigm implementing project , appreciate wisdom of group.

sure can, cant if dtype int ... make array objects , can use objects...

in [43]: = [[{},{},{}],[{},{},{}]]  in [44]: = numpy.array(a)  in [45]: a[1][1] = {'hello':'world','something':5}  in [46]: out[46]: array([[{}, {}, {}],        [{}, {'hello': 'world', 'something': 5}, {}]], dtype=object)

although not sure whay gain using numpy objects, may better off leaving list of lists


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