Merge pull request #1337 from effigies/fix/doctest

FIX: Use legacy numpy printing during doc builds/tests

doc/source/conf.py

@@ -28,6 +28,10 @@
     import tomli as tomllib
 
 # Check for external Sphinx extensions we depend on
+try:
+    import numpy as np
+except ImportError:
+    raise RuntimeError('Need to install "numpy" package for doc build')
 try:
     import numpydoc
 except ImportError:
@@ -45,6 +49,11 @@
         'Need nibabel on Python PATH; consider "make htmldoc" from nibabel root directory'
     )
 
+from packaging.version import Version
+
+if Version(np.__version__) >= Version('1.22'):
+    np.set_printoptions(legacy='1.21')
+
 # -- General configuration ----------------------------------------------------
 
 # We load the nibabel release info into a dict by explicit execution