check version first thing

Author: FoamyGuy

tools/board_stubs/circuitpython_setboard/__init__.py

@@ -1,8 +1,14 @@
 # SPDX-FileCopyrightText: 2024 Tim Cocks
 #
 # SPDX-License-Identifier: MIT
-import argparse
 import sys
+
+version_info = sys.version_info
+if version_info.major < 3 or (version_info.major == 3 and version_info.minor < 9):
+    sys.stdout.write("Python 3.9 is the minimum supported version for board specific stubs.\n")
+    sys.exit(0)
+
+import argparse
 import shutil
 from collections import defaultdict
 from importlib import resources
@@ -35,10 +41,6 @@ def header(txt: str) -> str:
 
 
 def set_board():
-    version_info = sys.version_info
-    if version_info.major < 3 or (version_info.major == 3 and version_info.minor < 9):
-        sys.stdout.write("Python 3.9 is the minimum supported version for board specific stubs.\n")
-        sys.exit(0)
     parser = argparse.ArgumentParser(
         prog=__name__,
         usage="Install CircuitPython board-specific stubs",