doctests

docs/source/conf.py

@@ -2,14 +2,16 @@ import os
 import sys
 import datetime
 import sphinx_rtd_theme
+import doctest
 
 sys.path.insert(0, os.path.abspath('../..'))
 
-from torch_scatter import __version__
+from torch_scatter import __version__  # noqa
 
 extensions = [
     'sphinx.ext.autodoc',
     'sphinx.ext.doctest',
+    'sphinx.ext.intersphinx',
     'sphinx.ext.mathjax',
     'sphinx.ext.napoleon',
     'sphinx.ext.viewcode',
@@ -19,12 +21,13 @@ extensions = [
 source_suffix = '.rst'
 master_doc = 'index'
 
-project = 'pytorch_scatter'
-copyright = '{}, Matthias Fey'.format(datetime.datetime.now().year)
 author = 'Matthias Fey'
-
-version = __version__
-release = __version__
+project = 'pytorch_scatter'
+copyright = '{}, {}'.format(datetime.datetime.now().year, author)
+version = release = __version__
 
 html_theme = 'sphinx_rtd_theme'
 html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
+
+doctest_default_flags = doctest.NORMALIZE_WHITESPACE
+intersphinx_mapping = {'python': ('https://docs.python.org/', None)}

setup.py

 from os import path as osp
 from setuptools import setup, find_packages
 
-import build  # noqa
 from torch_scatter import __version__
 
+import build  # noqa
+
 install_requires = ['cffi']
 setup_requires = ['pytest-runner', 'cffi']
 tests_require = ['pytest']

torch_scatter/functions/add.py

@@ -30,18 +30,32 @@ def scatter_add_(output, index, input, dim=0):
         input (Tensor): The source tensor
         dim (int, optional): The axis along which to index
 
-    Example::
+    .. testsetup::
 
-        >> input = torch.Tensor([[2, 0, 1, 4, 3], [0,2, 1, 3, 4]])
-        >> index = torch.LongTensor([[4, 5, 2, 3], [0, 0, 2, 2, 1]])
-        >> output = torch.zeros(2, 6)
-        >> scatter_add_(output, index, input, dim=1)
+        import torch
+        from torch_scatter import scatter_add_
+
+    .. testcode::
+
+        input = torch.Tensor([[2, 0, 1, 4, 3], [0, 2, 1, 3, 4]])
+        index = torch.LongTensor([[4, 5, 4, 2, 3], [0, 0, 2, 2, 1]])
+        output = torch.zeros(2, 6)
+        scatter_add_(output, index, input, dim=1)
+        print(output)
+
+    .. testoutput::
 
         0  0  4  3  3  0
         2  4  4  0  0  0
-        [torch.FloatTensor of size 2x6]
+       [torch.FloatTensor of size 2x6]
+
     """
     return output.scatter_add_(dim, index, input)
+    # .. testoutput::
+
+    #      0  0  4  3  3  0
+    #      2  4  4  0  0  0
+    #     [torch.FloatTensor of size 2x6]
 
 
 def scatter_add(index, input, dim=0, size=None, fill_value=0):