cpython/Lib/lib2to3/fixes/fix_reload.py

37 lines
1.1 KiB
Python

"""Fixer for reload().
reload(s) -> importlib.reload(s)"""
# Local imports
from .. import fixer_base
from ..fixer_util import ImportAndCall, touch_import
class FixReload(fixer_base.BaseFix):
BM_compatible = True
order = "pre"
PATTERN = """
power< 'reload'
trailer< lpar='('
( not(arglist | argument<any '=' any>) obj=any
| obj=arglist<(not argument<any '=' any>) any ','> )
rpar=')' >
after=any*
>
"""
def transform(self, node, results):
if results:
# I feel like we should be able to express this logic in the
# PATTERN above but I don't know how to do it so...
obj = results['obj']
if obj:
if (obj.type == self.syms.argument and
obj.children[0].value in {'**', '*'}):
return # Make no change.
names = ('importlib', 'reload')
new = ImportAndCall(node, results, names)
touch_import(None, 'importlib', node)
return new