diff --git a/llvm-build/build.py b/llvm-build/build.py
index 50e1d69c4904d02df5f625a816c69ae57669f0d4..2f6c98dde7a8e94f327351eb69e15eeeb0c658a2 100755
--- a/llvm-build/build.py
+++ b/llvm-build/build.py
@@ -242,7 +242,7 @@ class BuildConfig():
         parser.add_argument(
             '--build-python',
             action='store_true',
-            default=False,
+            default=True,
             help='Build Python (not using prebuilt one, currently effective for Windows and OHOS)')
 
         parser.add_argument(
@@ -1060,9 +1060,7 @@ class LlvmCore(BuildUtils):
             py_lib_dir = os.path.join(py_dir, 'lib')
             py_inc_dir = os.path.join(py_dir, 'include')
         else:
-            py_dir = os.path.join(self.build_config.REPOROOT_DIR, 'third_party', 'mingw-w64')
-            py_lib_dir = os.path.join(py_dir, 'mingw-w64-crt', 'lib64')
-            py_inc_dir = os.path.join(py_dir, 'mingw-w64-headers', 'include')
+            raise Exception('Invalid Python information, please check if the Python tool is valid')
         windows_defines['LLDB_RELOCATABLE_PYTHON'] = 'OFF'
         windows_defines['LLDB_ENABLE_PYTHON'] = 'ON'
         windows_defines['LLDB_PYTHON_HOME'] = 'python'