Adjust type comparison for Windows

 - handle the fact the np.dype('i4') == int (Python native int) on
   Windows machines. This messes up the logic in the format_print
   function

taxcalc/dropq/dropq_utils.py

@@ -8,12 +8,13 @@
 
 def format_print(x, _type, num_decimals):
     float_types = [float, np.dtype('f8')]
+    int_types = [int, np.dtype('i8')]
     frmat_str = "0:.{num}f".format(num=num_decimals)
     frmat_str = "{" + frmat_str + "}"
     try:
         if _type in float_types or _type is None:
             return frmat_str.format(x)
-        elif _type == int:
+        elif _type in int_types:
             return str(int(x))
         elif _type == str:
             return str(x)

taxcalc/tests/test_dropq.py

@@ -356,7 +356,7 @@ def test_chooser():
 
 
 def test_format_print_not_implemented():
-    x = np.array([1], dtype='i4')
+    x = np.array([1], dtype='i2')
     with pytest.raises(NotImplementedError):
         format_print(x[0], x.dtype, 2)