diff --git a/uncompyle6/parsers/parse32.py b/uncompyle6/parsers/parse32.py
index be262985..c6de1637 100644
--- a/uncompyle6/parsers/parse32.py
+++ b/uncompyle6/parsers/parse32.py
@@ -15,6 +15,12 @@ class Python32Parser(Python3Parser):
         store_locals   ::= LOAD_FAST STORE_LOCALS
         """
 
+
+    def p_gen_comp32(self, args):
+        """
+        genexpr_func ::= LOAD_ARG FOR_ITER store comp_iter JUMP_BACK
+        """
+
     def p_32to35(self, args):
         """
         if_exp            ::= expr jmp_false expr jump_forward_else expr COME_FROM
diff --git a/uncompyle6/parsers/parse33.py b/uncompyle6/parsers/parse33.py
index 8135db87..fc3ed940 100644
--- a/uncompyle6/parsers/parse33.py
+++ b/uncompyle6/parsers/parse33.py
@@ -19,8 +19,9 @@ class Python33Parser(Python32Parser):
     def customize_grammar_rules(self, tokens, customize):
         self.remove_rules("""
         # 3.3+ adds POP_BLOCKS
-        whileTruestmt ::= SETUP_LOOP l_stmts_opt JUMP_BACK NOP COME_FROM_LOOP
+        genexpr_func  ::= LOAD_ARG FOR_ITER store comp_iter JUMP_BACK
         whileTruestmt ::= SETUP_LOOP l_stmts_opt JUMP_BACK POP_BLOCK NOP COME_FROM_LOOP
+        whileTruestmt ::= SETUP_LOOP l_stmts_opt JUMP_BACK NOP COME_FROM_LOOP
         """)
         super(Python33Parser, self).customize_grammar_rules(tokens, customize)
         return
diff --git a/uncompyle6/parsers/parse37.py b/uncompyle6/parsers/parse37.py
index 80d9c6dd..4302e247 100644
--- a/uncompyle6/parsers/parse37.py
+++ b/uncompyle6/parsers/parse37.py
@@ -403,7 +403,7 @@ class Python37Parser(Python37BaseParser):
         list_if_not ::= expr jmp_true list_iter
         """
 
-    def p_set_comp(self, args):
+    def p_gen_comp37(self, args):
         """
         comp_iter ::= comp_for
         comp_body ::= gen_comp_body
diff --git a/uncompyle6/semantics/make_function36.py b/uncompyle6/semantics/make_function36.py
index 78bf9e26..0546e756 100644
--- a/uncompyle6/semantics/make_function36.py
+++ b/uncompyle6/semantics/make_function36.py
@@ -25,6 +25,7 @@ from xdis import (
 )
 from uncompyle6.scanner import Code
 from uncompyle6.semantics.parser_error import ParserError
+from uncompyle6.parser import ParserError as ParserError2
 from uncompyle6.semantics.helper import (
     find_all_globals,
     find_globals_and_nonlocals,
@@ -38,11 +39,12 @@ def make_function36(self, node, is_lambda, nested=1, code_node=None):
     """Dump function definition, doc string, and function body in
     Python version 3.6 and above.
     """
+
     # MAKE_CLOSURE adds an additional closure slot
 
     # In Python 3.6 and above stack change again. I understand
     # 3.7 changes some of those changes, although I don't
-    # see it in this code yet. Yes, it is hard to follow
+    # see it in this code yet. Yes, it is hard to follow,
     # and I am sure I haven't been able to keep up.
 
     # Thank you, Python.
@@ -84,16 +86,15 @@ def make_function36(self, node, is_lambda, nested=1, code_node=None):
     args_attr = args_node.attr
 
     if len(args_attr) == 3:
-        pos_args, kw_args, annotate_argc = args_attr
+        _, kw_args, annotate_argc = args_attr
     else:
-        pos_args, kw_args, annotate_argc, closure = args_attr
+        _, kw_args, annotate_argc, closure = args_attr
 
     if node[-2] != "docstring":
         i = -4
     else:
         i = -5
 
-    kw_pairs = 0
     if annotate_argc:
         # Turn into subroutine and DRY with other use
         annotate_node = node[i]
@@ -105,9 +106,9 @@ def make_function36(self, node, is_lambda, nested=1, code_node=None):
             ):
                 types = [self.traverse(n, indent="") for n in annotate_node[:-2]]
                 names = annotate_node[-2].attr
-                l = len(types)
-                assert l == len(names)
-                for i in range(l):
+                length = len(types)
+                assert length == len(names)
+                for i in range(length):
                     annotate_dict[names[i]] = types[i]
                 pass
             pass
@@ -118,11 +119,6 @@ def make_function36(self, node, is_lambda, nested=1, code_node=None):
         # annotate = node[i]
         i -= 1
 
-    if kw_args:
-        kw_node = node[pos_args]
-        if kw_node == "expr":
-            kw_node = kw_node[0]
-
     defparams = []
     # FIXME: DRY with code below
     default, kw_args, annotate_argc = args_node.attr[0:3]
@@ -180,9 +176,7 @@ def make_function36(self, node, is_lambda, nested=1, code_node=None):
     if defparams:
         for i, defparam in enumerate(defparams):
             params.append(
-                build_param(
-                    ast, paramnames[i], defparam, annotate_dict.get(paramnames[i])
-                )
+                build_param(paramnames[i], defparam, annotate_dict.get(paramnames[i]))
             )
 
         for param in paramnames[i + 1 :]:
@@ -235,7 +229,7 @@ def make_function36(self, node, is_lambda, nested=1, code_node=None):
 
     ends_in_comma = False
     if kwonlyargcount > 0:
-        if not (4 & code.co_flags):
+        if not 4 & code.co_flags:
             if argc > 0:
                 self.write(", *, ")
             else:
@@ -299,7 +293,7 @@ def make_function36(self, node, is_lambda, nested=1, code_node=None):
                 pass
             pass
         # handle others
-        other_kw = [c == None for c in kw_args]
+        other_kw = [c is None for c in kw_args]
 
         for i, flag in enumerate(other_kw):
             if flag: