ENH: make check-{docs,tutorials} fail on dtype mismatch

Author: ev-br

.github/workflows/linux.yml

@@ -181,7 +181,8 @@ jobs:
     - name: Check docstests
       shell: 'script -q -e -c "bash --noprofile --norc -eo pipefail {0}"'
       run: |
-        pip install scipy-doctest hypothesis matplotlib scipy pytz pandas
+        pip install hypothesis matplotlib scipy pytz pandas
+        pip install git+https://github.com/scipy/scipy_doctest.git@strict-dtypes    # Temp
         spin check-docs -v
         spin check-tutorials -v
 

numpy/conftest.py

@@ -211,6 +211,9 @@ def warnings_errors_and_rng(test=None):
     dt_config.rndm_markers.add('#uninitialized')
     dt_config.rndm_markers.add('# uninitialized')
 
+    # make the checker pick on mismatched dtypes
+    dt_config.strict_check = True
+
     import doctest
     dt_config.optionflags = doctest.NORMALIZE_WHITESPACE | doctest.ELLIPSIS