simplify code by passing boolean value

Author: NimaSarajpoor

fastmath.py

@@ -33,15 +33,10 @@ def check_fastmath():
     return
 
 
-parser = argparse.ArgumentParser()
-parser.add_argument("--perform", required=True)
-EXCEPTED_VALUES = ["check"]
-
-args = parser.parse_args()
-if args.perform not in EXCEPTED_VALUES:
-    raise ValueError("Invalid argument")
-
-if args.perform == "check":
-    check_fastmath()
-else:
-    pass
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--check", action="store_true")
+    args = parser.parse_args()
+
+    if args.check:
+        check_fastmath()