Search through a 2-dimensional list without numpy

Question

I\'m looking to define a function that accepts two parameters: an int and a list.

If the function finds the integer in the list it returns

Answer 1

I would used solution like this:

#!/usr/bin/env ipython
# ---------------------
l = [
         [0, 0, 0, 0, 0, 0, 0, 0, 0],
         [0, 2, 1, 1, 0, 1, 1, 1, 0],
         [0, 1, 0, 1, 0, 0, 0, 1, 0],
         [0, 1, 0, 1, 1, 1, 0, 1, 0],
         [0, 1, 0, 0, 0, 1, 0, 1, 0],
         [0, 1, 1, 1, 0, 1, 0, 1, 0],
         [0, 0, 0, 1, 0, 1, 0, 1, 0],
         [0, 1, 1, 1, 0, 1, 0, 1, 0],
         [0, 1, 0, 0, 0, 0, 0, 1, 0],
         [0, 1, 0, 1, 1, 1, 0, 1, 0],
         [0, 1, 0, 1, 0, 1, 0, 1, 0],
         [0, 1, 1, 1, 0, 1, 1, 4, 0],
         [0, 0, 0, 0, 0, 0, 0, 0, 0]
    ]
# ----------------------------------
def search(value,listin):
    coords = [[ival,kkval] for ival,dd in enumerate(listin) for kkval,val in enumerate(dd) if val==value]
    return coords
# ----------------------------------
result = search(4,l)
print result

where I defined a function search, which can be used to search for certain value from an input list.