Make block_shapes and files into lists

CHANGES.txt

@@ -66,6 +66,8 @@ New features:
 
 Bug fixes:
 
+- The block_shapes and files properties of datasets now return lists instead
+  of tuples.
 - The ``--nodata`` option of rio-merge is now passed to the output file
   (#1345).
 - The precision keyword arguments for methods in the windows and transform

rasterio/_base.pyx

@@ -414,7 +414,7 @@ cdef class DatasetBase(object):
                 GDALGetBlockSize(band, &xsize, &ysize)
                 self._block_shapes.append((ysize, xsize))
 
-        return tuple(self._block_shapes)
+        return list(self._block_shapes)
 
     def get_nodatavals(self):
         cdef GDALRasterBandH band = NULL
@@ -1193,7 +1193,7 @@ cdef class DatasetBase(object):
                 file_list = GDALGetFileList(h_dataset)
             num_items = CSLCount(file_list)
             try:
-                return tuple([file_list[i] for i in range(num_items)])
+                return list([file_list[i] for i in range(num_items)])
             finally:
                 CSLDestroy(file_list)
 

tests/test_blocks.py

@@ -68,7 +68,7 @@ class RasterBlocksTest(unittest.TestCase):
     def test_blocks(self):
         with rasterio.open('tests/data/RGB.byte.tif') as s:
             self.assertEqual(len(s.block_shapes), 3)
-            self.assertEqual(s.block_shapes, ((3, 791), (3, 791), (3, 791)))
+            self.assertEqual(s.block_shapes, [(3, 791), (3, 791), (3, 791)])
             itr = s.block_windows(1)
             (j, i), first = next(itr)
             self.assertEqual((j, i), (0, 0))

tests/test_dataset.py

@@ -15,7 +15,7 @@ def test_files(data):
     with open(aux, 'w'):
         pass
     with rasterio.open(tif) as src:
-        assert src.files == (tif, aux)
+        assert src.files == [tif, aux]
 
 
 def test_handle_closed(path_rgb_byte_tif):