comment unused import (#8993)

correct `assert` usage in never reached code

Signed-off-by: donno2048 <just4now666666@gmail.com>

tools/core_gen/assemble.py

@@ -1,7 +1,5 @@
 #!python
 from meta_gen import *
-import copy
-import sys
 import re
 
 def assemble(template, **kwargs):
@@ -30,6 +28,7 @@ def assemble(template, **kwargs):
     return mapping["main"]
 
 
+# import sys
 # if __name__ == "__main__":
 #     assert(len(sys.argv) == 2)
 #     root_file = sys.argv[1]

tools/core_gen/meta_gen.py

@@ -43,7 +43,7 @@ def meta_gen(content):
             eprint(struct_name)
             eprint(body_res)
             eprint(body)
-            assert(false)
+            assert False
         struct_name, base_name = pack
         if not base_name:
             root_base = struct_name