start

src/awkward/_v2/contents/content.py

@@ -1013,6 +1013,9 @@ def validityerror(self, path="layout"):
             return paramcheck
         return self._validityerror(path)
 
+    def nbytes(self):
+        return self._nbytes_part()
+
     def purelist_parameter(self, key):
         return self.Form.purelist_parameter(self, key)
 

src/awkward/_v2/contents/numpyarray.py

@@ -985,6 +985,7 @@ def _validityerror(self, path):
                 )
         return ""
 
+
     def _rpad(self, target, axis, depth, clip):
         if len(self.shape) == 0:
             raise ValueError("cannot rpad a scalar")
@@ -1003,6 +1004,7 @@ def _rpad(self, target, axis, depth, clip):
         else:
             return self.rpad_axis0(target, clip=True)
 
+
     def _to_arrow(self, pyarrow, mask_node, validbytes, length, options):
         if self._data.ndim != 1:
             return self.toRegularArray()._to_arrow(

tests/v2/test_0927-numpy-array-nbytes.py

@@ -0,0 +1,20 @@
+# BSD 3-Clause License; see https://github.com/scikit-hep/awkward-1.0/blob/main/LICENSE
+
+from __future__ import absolute_import
+
+import pytest  # noqa: F401
+import numpy as np  # noqa: F401
+import awkward as ak  # noqa: F401
+
+from awkward._v2.tmp_for_testing import v1_to_v2, v1_to_v2_index
+
+pytestmark = pytest.mark.skipif(
+    ak._util.py27, reason="No Python 2.7 support in Awkward 2.x"
+)
+
+def test():
+    np_data = np.random.random(size=(4, 100 * 1024 * 1024 // 8 // 4))
+    array = ak.from_numpy(np_data, regulararray=False)
+    array = v1_to_v2(array.layout)
+
+    assert np_data.nbytes == array.nbytes()