Usual isinstance for mypy

2020-06-18 17:20:17 +07:00 · 2020-06-18 17:20:17 +07:00 · dcde484a63
parent 3b1e90b30e
commit dcde484a63
1 changed files with 2 additions and 2 deletions
--- a/relational/parser.py
+++ b/relational/parser.py
@ -125,10 +125,10 @@ class Node:
        for i in range(level):
            r += '  '
        r += self.name
-        if self.name in b_operators:
+        if self.name in b_operators and isinstance(self, Binary):
            r += self.left.printtree(level + 1)
            r += self.right.printtree(level + 1)
-        elif self.name in u_operators:
+        elif self.name in u_operators and isinstance(self, Unary):
            r += '\t%s\n' % self.prop
            r += self.child.printtree(level + 1)
        return '\n' + r