Issue #18864: Add a setter for ModuleSpec.has_location.

2 files changed, 11 insertions, 0 deletions

diff --git a/Lib/importlib/_bootstrap.py b/Lib/importlib/_bootstrap.py
index 6b8f979b8b..baa6c162c6 100644
--- a/Lib/importlib/_bootstrap.py
+++ b/Lib/importlib/_bootstrap.py
@@ -841,6 +841,10 @@ class ModuleSpec:
     def has_location(self):
         return self._set_fileattr
 
+    @has_location.setter
+    def has_location(self, value):
+        self._set_fileattr = bool(value)
+
 
 def spec_from_loader(name, loader, *, origin=None, is_package=None):
     """Return a module spec based on various loader methods."""
diff --git a/Lib/test/test_importlib/test_spec.py b/Lib/test/test_importlib/test_spec.py
index 8880ffcbd8..2af47f4b99 100644
--- a/Lib/test/test_importlib/test_spec.py
+++ b/Lib/test/test_importlib/test_spec.py
@@ -116,6 +116,13 @@ class ModuleSpecTests:
         self.assertIs(spec.cached, None)
         self.assertFalse(spec.has_location)
 
+    def test_has_location_setter(self):
+        spec = self.machinery.ModuleSpec(self.name, self.loader,
+                                         origin='somewhere')
+        self.assertFalse(spec.has_location)
+        spec.has_location = True
+        self.assertTrue(spec.has_location)
+
     def test_equality(self):
         other = type(sys.implementation)(name=self.name,
                                          loader=self.loader,