An implementation of goto for Python 3.
Copy goto.py where your code can import it.
Usage:
from goto import goto
@goto
def matrix_find(matrix, n):
for rectangle in matrix:
for line in rectangle:
for value in line:
if value == n:
rval = "found"
goto .found
rval = "not found"
label .found
# ... other code here ...
return rval
print(matrix_find([[[1,2]],[[3,4]]], 3)) # "found"
print(matrix_find([[[1,2]],[[3,4]]], 99)) # "not found"