Merge pull request #3224 from effigies/doctest/optional_pybids

DOC: Skip BIDSDataGrabber doctest if pybids is missing

Author: effigies

nipype/conftest.py

@@ -17,6 +17,7 @@
 def add_np(doctest_namespace):
     doctest_namespace["np"] = numpy
     doctest_namespace["os"] = os
+    doctest_namespace["pytest"] = pytest
     doctest_namespace["datadir"] = data_dir
 
 

nipype/interfaces/io.py

@@ -2895,6 +2895,14 @@ class BIDSDataGrabber(LibraryBaseInterface, IOBase):
 
     Examples
     --------
+
+    .. setup::
+
+        >>> try:
+        ...     import bids
+        ... except ImportError:
+        ...     pytest.skip()
+
     By default, the BIDSDataGrabber fetches anatomical and functional images
     from a project, and makes BIDS entities (e.g. subject) available for
     filtering outputs.