1 files changed, 14 insertions, 12 deletions
diff --git a/nandgame/assembler/parser.py b/nandgame/assembler/parser.py
index 0b34ebe..7cc4930 100755
--- a/nandgame/assembler/parser.py
+++ b/nandgame/assembler/parser.py
@@ -70,12 +70,12 @@ def p_line(p: P) -> None:
     # if error handling
     else:
         p[0] = p[1]
-        assert(False)
+        assert False
 
 
 def p_instruction(p: P) -> None:
     """instruction : valid_instruction
-                   | one_arg_invalid
+    | one_arg_invalid
     """
     p[0] = p[1]
 
@@ -102,8 +102,10 @@ def p_no_arg(p: P) -> None:
 
 def p_onearg_invalid(p: P) -> None:
     """one_arg_invalid : opcode argument"""
-    op: Tuple[str,str] = p[1]
-    p[0] = pt.ErrorInstruction(p.lineno(1), op[1], "No opcode only supports one argument.")
+    op: tuple[str, str] = p[1]
+    p[0] = pt.ErrorInstruction(
+        p.lineno(1), op[1], "No opcode only supports one argument."
+    )
     pass
 
 
@@ -146,14 +148,12 @@ def p_opcode(p: P) -> None:
 
 
 def p_opcode_jmp(p: P) -> None:
-    """opcode_jmp : OP DOT JUMP
-    """
+    """opcode_jmp : OP DOT JUMP"""
     p[0] = (p[1], p[3])
 
 
 def p_opcode_njmp(p: P) -> None:
-    """opcode_njmp : OP
-    """
+    """opcode_njmp : OP"""
     p[0] = (p[1], None)
 
 
@@ -164,19 +164,21 @@ def p_number(p: P) -> None:
     p[0] = pt.Immediate(p[1])
 
 
-def p_error(p: LexToken) -> LexToken:
+def p_error(p: LexToken | None) -> LexToken|None:
     if p:
-        print(f"WARNING: Unexpected {repr(p.value)} on line {p.lineno}", file=sys.stderr)
+        print(
+            f"WARNING: Unexpected {repr(p.value)} on line {p.lineno}", file=sys.stderr
+        )
     else:
         print("WARNING: Unexpected end of file.", file=sys.stderr)
         return
 
     while True:
-        tok = parser.token()
+        tok: LexToken = parser.token()
         if not tok or tok.type == 'NL':
             break
     parser.errok()
     return tok
 
 
-parser = yacc.yacc()
+parser: yacc.LRParser = yacc.yacc()