diff --git a/ci/code_checks.sh b/ci/code_checks.sh
index 0cc42be42d61e..98debb5e2ef7a 100755
--- a/ci/code_checks.sh
+++ b/ci/code_checks.sh
@@ -309,6 +309,10 @@ if [[ -z "$CHECK" || "$CHECK" == "doctests" ]]; then
     pytest -q --doctest-modules pandas/core/arrays/boolean.py
     RET=$(($RET + $?)) ; echo $MSG "DONE"
 
+    MSG='Doctests dtypes/inference.py' ; echo $MSG
+    pytest -q --doctest-modules pandas/core/dtypes/inference.py -k "is_iterator"
+    RET=$(($RET + $?)) ; echo $MSG "DONE"
+
 fi
 
 ### DOCSTRINGS ###
diff --git a/pandas/core/dtypes/inference.py b/pandas/core/dtypes/inference.py
index 9e9278052e35d..d78f7f1cfb981 100644
--- a/pandas/core/dtypes/inference.py
+++ b/pandas/core/dtypes/inference.py
@@ -106,21 +106,20 @@ def is_iterator(obj) -> bool:
 
     Returns
     -------
-    is_iter : bool
+    bool
         Whether `obj` is an iterator.
 
     Examples
     --------
-    >>> is_iterator([1, 2, 3])
+    >>> is_iterator((x for x in [1, 2, 3]))
     True
-    >>> is_iterator(datetime(2017, 1, 1))
+    >>> is_iterator([1, 2, 3])
     False
     >>> is_iterator("foo")
     False
     >>> is_iterator(1)
     False
     """
-
     if not hasattr(obj, "__iter__"):
         return False