Issue #20299: Argument Clinic custom converters may now change the default

value of c_default and py_default with a class member.

1 files changed, 4 insertions, 2 deletions

diff --git a/Tools/clinic/clinic.py b/Tools/clinic/clinic.py
index 0987d568bd..ba0bc174ce 100755
--- a/Tools/clinic/clinic.py
+++ b/Tools/clinic/clinic.py
@@ -1893,8 +1893,10 @@ class CConverter(metaclass=CConverterAutoRegister):
                     self.__class__.__name__, default, name, types_str))
             self.default = default
 
-        self.c_default = c_default
-        self.py_default = py_default
+        if c_default:
+            self.c_default = c_default
+        if py_default:
+            self.py_default = py_default
 
         if annotation != unspecified:
             fail("The 'annotation' parameter is not currently permitted.")