diff --git a/src/deemon/compiler/asm/assembler.c b/src/deemon/compiler/asm/assembler.c
index 81c51499c..1217346f0 100644
--- a/src/deemon/compiler/asm/assembler.c
+++ b/src/deemon/compiler/asm/assembler.c
@@ -1956,7 +1956,7 @@ relint_compare_eq(DeeRelIntObject *self, DeeRelIntObject *other) {
 
 PRIVATE WUNUSED NONNULL((1, 2)) int DCALL
 relint_trycompare_eq(DeeRelIntObject *self, DeeRelIntObject *other) {
-	if (DeeObject_AssertTypeExact(other, &DeeRelInt_Type))
+	if (!DeeObject_InstanceOfExact(other, &DeeRelInt_Type))
 		return -1;
 	return (self->ri_sym == other->ri_sym &&
 	        self->ri_add == other->ri_add &&
@@ -1977,7 +1977,7 @@ INTERN DeeTypeObject DeeRelInt_Type = {
 	OBJECT_HEAD_INIT(&DeeType_Type),
 	/* .tp_name     = */ "_RelInt",
 	/* .tp_doc      = */ NULL,
-	/* .tp_flags    = */ TP_FNORMAL|TP_FFINAL,
+	/* .tp_flags    = */ TP_FNORMAL | TP_FFINAL,
 	/* .tp_weakrefs = */ 0,
 	/* .tp_features = */ TF_NONE,
 	/* .tp_base     = */ &DeeObject_Type,
diff --git a/src/deemon/objects/attribute.c b/src/deemon/objects/attribute.c
index 67d3919ed..a5feb2408 100644
--- a/src/deemon/objects/attribute.c
+++ b/src/deemon/objects/attribute.c
@@ -1079,7 +1079,7 @@ enumattr_longjmp(DeeObject *__restrict declarator,
 	} else {
 		new_attribute->a_info.a_doc = attr_doc;
 	}
-	Dee_XIncref(declarator);
+	Dee_Incref(declarator);
 	Dee_XIncref(attr_type);
 	DeeObject_Init(new_attribute, &DeeAttribute_Type);
 
diff --git a/src/deemon/objects/seq_functions.c b/src/deemon/objects/seq_functions.c
index 47747b528..f67faa563 100644
--- a/src/deemon/objects/seq_functions.c
+++ b/src/deemon/objects/seq_functions.c
@@ -2085,8 +2085,11 @@ DeeSeq_EqVS(DeeObject *const *lhsv, size_t lhsc,
 	} else {
 		DREF DeeObject *rhs_iter;
 		rhs_iter = DeeObject_Iter(rhs);
-		if unlikely(!rhs_iter)
+		if unlikely(!rhs_iter) {
+			if (DeeError_Catch(&DeeError_NotImplemented))
+				return 0;
 			return -1;
+		}
 		result = DeeSeq_EqVI(lhsv, lhsc, rhs_iter);
 		Dee_Decref(rhs_iter);
 	}
@@ -2183,8 +2186,11 @@ DeeSeq_EqFS(DeeObject *lhs, size_t lhsc, DeeObject *rhs) {
 	} else {
 		DREF DeeObject *rhs_iter;
 		rhs_iter = DeeObject_Iter(rhs);
-		if unlikely(!rhs_iter)
+		if unlikely(!rhs_iter) {
+			if (DeeError_Catch(&DeeError_NotImplemented))
+				return 0;
 			return -1;
+		}
 		result = DeeSeq_EqFI(lhs, lhsc, rhs_iter);
 		Dee_Decref(rhs_iter);
 	}
@@ -2300,8 +2306,11 @@ DeeSeq_EqIS(DeeObject *lhs, DeeObject *rhs) {
 	} else {
 		DREF DeeObject *rhs_iter;
 		rhs_iter = DeeObject_Iter(rhs);
-		if unlikely(!rhs_iter)
+		if unlikely(!rhs_iter) {
+			if (DeeError_Catch(&DeeError_NotImplemented))
+				return 0;
 			return -1;
+		}
 		result = DeeSeq_EqII(lhs, rhs_iter);
 		Dee_Decref(rhs_iter);
 	}
diff --git a/src/deemon/runtime/operator.c b/src/deemon/runtime/operator.c
index 192f9cac7..a7594f8a3 100644
--- a/src/deemon/runtime/operator.c
+++ b/src/deemon/runtime/operator.c
@@ -1558,12 +1558,9 @@ DEFINE_INTERNAL_OPERATOR(DREF DeeObject *, DefaultStrWithPrint, (DeeObject *REST
 	Dee_ssize_t print_error;
 	struct unicode_printer printer = UNICODE_PRINTER_INIT;
 	LOAD_TP_SELF;
-	ASSERT(tp_self->tp_cast.tp_print);
-	ASSERT(tp_self->tp_cast.tp_print != &DeeObject_DefaultPrintWithStr);
-	print_error = DeeType_INVOKE_PRINTREPR_NODEFAULT(tp_self, self, &unicode_printer_print, &printer);
 	ASSERT(tp_self->tp_cast.tp_print &&
 	       tp_self->tp_cast.tp_print != &DeeObject_DefaultPrintWithStr);
-	print_error = DeeType_INVOKE_PRINT(tp_self, self, &unicode_printer_print, &printer);
+	print_error = DeeType_INVOKE_PRINT_NODEFAULT(tp_self, self, &unicode_printer_print, &printer);
 	if unlikely(print_error < 0)
 		goto err;
 	return unicode_printer_pack(&printer);