cpython/Lib/lib2to3/fixes/fix_nonzero.py

21 lines
578 B
Python

"""Fixer for __nonzero__ -> __bool__ methods."""
# Author: Collin Winter
# Local imports
from .. import fixer_base
from ..fixer_util import Name, syms
class FixNonzero(fixer_base.BaseFix):
PATTERN = """
classdef< 'class' any+ ':'
suite< any*
funcdef< 'def' name='__nonzero__'
parameters< '(' NAME ')' > any+ >
any* > >
"""
def transform(self, node, results):
name = results["name"]
new = Name("__bool__", prefix=name.get_prefix())
name.replace(new)