fix test_check_abi (#31288)

python/paddle/fluid/tests/custom_op/test_check_abi.py

@@ -61,7 +61,7 @@ class TestCheckCompiler(TestABIBase):
     def test_wrong_compiler_warning(self):
         # clear environ
         self.del_environ()
-        compiler = 'nvcc'  # fake wrong compiler
+        compiler = 'python'  # fake wrong compiler
         with warnings.catch_warnings(record=True) as error:
             flag = utils.check_abi_compatibility(compiler, verbose=True)
             # check return False

python/paddle/utils/cpp_extension/extension_utils.py

@@ -930,7 +930,7 @@ def check_abi_compatibility(compiler, verbose=False):
         return True
     warnings.warn(
         ABI_INCOMPATIBILITY_WARNING.format(
-            user_compiler=compiler, version=version.strip()))
+            user_compiler=compiler, version='.'.join(version)))
     return False