BUG: fix __doctest_requires__ when constraint is present

CHANGES.rst

@@ -1,7 +1,9 @@
 1.8.0 (unreleased)
 ==================
 
-- No changes yet.
+- Fixing bug where `__doctest_requires__` with version specifiers (e.g.,
+  `numpy>=2.0`) incorrectly skipped tests even when dependencies were
+  satisfied. [#318]
 
 1.7.0 (2026-01-07)
 ==================

pytest_doctestplus/plugin.py

@@ -874,7 +874,7 @@ def conditionally_insert_skip(test):
                             continue  # The pattern does not apply
 
                         for mod in mods:
-                            self._prepend_importorskip(test, module=mod)
+                            self._prepend_module_check(test, module=mod)
                 return True
 
             for _test in tests:
@@ -893,17 +893,20 @@ def _prepend_skip(self, test):
         importorskip = doctest.Example(source=source, want="")
         test.examples.insert(0, importorskip)
 
-    def _prepend_importorskip(self, test, *, module):
-        """Prepends `pytest.importorskip` before the doctest."""
+    def _prepend_module_check(self, test, *, module):
+        """Prepends module checker before the doctest."""
+        escaped_module = module.replace("'", "\\'")
         source = (
+            "from pytest_doctestplus.utils import ModuleChecker; "
             "import pytest; "
             # Hide output of this statement in `___`, otherwise doctests fail
-            f"___ = pytest.importorskip({module!r}); "
+            f"___ = ModuleChecker().check('{escaped_module}') or "
+            f"pytest.skip('could not import {escaped_module}'); "
             # Don't impact what's available in the namespace
-            "del pytest; del ___"
+            "del ModuleChecker, pytest, ___"
         )
-        importorskip = doctest.Example(source=source, want="")
-        test.examples.insert(0, importorskip)
+        module_check = doctest.Example(source=source, want="")
+        test.examples.insert(0, module_check)
 
 
 def write_modified_file(fname, new_fname, changes, encoding=None):

tests/test_doctestplus.py

@@ -1565,6 +1565,9 @@ def test_requires_module_variable(testdir):
         __doctest_requires__ = {
             ("f",): ["module_that_is_not_availabe"],
             ("g",): ["pytest"],
+            ("h",): ["pytest>=1.0"],
+            ("i",): ["pytest<1.0"],
+            ("j",): ["module_that_is_not_availabe>=1.0"],
         }
 
         def f():
@@ -1575,13 +1578,38 @@ def f():
 
         def g():
             '''
-            Test that call to `pytest.importorskip` is not visible
+            Make sure out internal variables are not visible.
 
+            >>> assert "ModuleChecker" not in locals()
             >>> assert "pytest" not in locals()
             >>> assert "___" not in locals()
             >>> 1 + 1
             2
             '''
             pass
+
+        def h():
+            '''
+            Make sure out internal variables are not visible.
+
+            >>> assert "ModuleChecker" not in locals()
+            >>> assert "pytest" not in locals()
+            >>> assert "___" not in locals()
+            >>> 1 + 1
+            2
+            '''
+            pass
+
+        def i():
+            '''
+            >>> assert False, "This should be skipped due to version requirement not being met"
+            '''
+            skip
+
+        def j():
+            '''
+            >>> import module_that_is_not_availabe
+            '''
+            skip
         """)
-    testdir.inline_run(p, '--doctest-plus').assertoutcome(passed=1, skipped=1)
+    testdir.inline_run(p, '--doctest-plus').assertoutcome(passed=2, skipped=3)